Tricky Example 12 - Chapter 8 - Class 10 | Introduction to Trigonometry | NCERT Maths | CBSE

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  • Опубликовано: 4 янв 2025

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  • @sakshitomar4164
    @sakshitomar4164 2 года назад +88

    I was struggling with this question a lot because of that minus sign. Finally I got my answer . Thank you sir . My words cannot adequately express my gratitude for you 💖💖💖💖

    • @Mathemafia
      @Mathemafia  2 года назад +13

      You're most welcome. I am glad that my videos are helpful.
      I conducted a live session today regarding the live sessions :) that I am going to conduct on regular basis. I hope you will like to join in future. Checkout its replay here in case you have not watched it yet ruclips.net/video/OMQ47TmOt74/видео.html. Send me your feedback about the new setup. I will really appreciate it.

    • @crazytv2008
      @crazytv2008 2 года назад +3

      Me to was struck in same

    • @hola-bb2wt
      @hola-bb2wt 2 года назад +2

      Same oh my god

    • @arthtayal
      @arthtayal 2 года назад

      True

    • @harshji3232
      @harshji3232 Год назад

      @@Mathemafia r

  • @Mathemafia
    @Mathemafia  2 года назад +7

    Watch complete chapter here: ruclips.net/video/o1n-m0kWBGU/видео.html

  • @uniquistic4761
    @uniquistic4761 Год назад +16

    Your presentatiom and way of teaching is really great

    • @Mathemafia
      @Mathemafia  Год назад +1

      Thank you so much for liking my way of teaching. I need a lot of support from students to make my channel grow. Pls share it if you don't mind. 🙂

    • @Adityasri07
      @Adityasri07 Год назад

      I don’t think so 😅 cause there are better ways

  • @alishamustafa5891
    @alishamustafa5891 10 месяцев назад +5

    ALL doubts Crystal Clear Sir...UR VDOS R SOO HELPFUL...🤗

  • @SimranKaur-ke9uc
    @SimranKaur-ke9uc Год назад +5

    Very nice explanation better than my tuition teacher

  • @hardikjain8378
    @hardikjain8378 3 года назад +6

    5:46 minus bhar nikhalna wala concept samaj ma nahi aya sir

    • @Mathemafia
      @Mathemafia  3 года назад +4

      We need (sec θ - tan θ) in both the terms for factorizations. That is why I have taken out minus. Just watch it again - I have explained in detail. Fir bhi kuch confusion ho, let me know, I will help.

  • @GunjanAgarwal-cr9xt
    @GunjanAgarwal-cr9xt 10 месяцев назад +7

    If you replace 1 in numerator then you will get tan+sec and if you replace 1from denomerator then you will get 1/tan+sec

    • @Wings_77
      @Wings_77 4 месяца назад +1

      Thank you

    • @Charuchugh
      @Charuchugh 2 месяца назад

      Even I was struggling with that. Then how would I know which one to substitute

    • @GunjanAgarwal-cr9xt
      @GunjanAgarwal-cr9xt 2 месяца назад

      I was skipping this question but luckily I didn't as it came in my set of paper

    • @GunjanAgarwal-cr9xt
      @GunjanAgarwal-cr9xt 2 месяца назад

      ​@@Charuchugh practice is the only option you have for trigno

  • @ericj199
    @ericj199 2 года назад +7

    2:50 "rearranging the numerator and denominator" could you provide me some more examples of this step? Is this allowed with numbers as well? Are there any conditions to it?

    • @Sammy-wh3vo
      @Sammy-wh3vo Год назад

      No ❤

    • @ericj199
      @ericj199 Год назад

      @@Sammy-wh3vo Ok but this looks so backhanded 😭

    • @Sammy-wh3vo
      @Sammy-wh3vo 11 месяцев назад

      @@ericj199 cz it is lmao

    • @ericj199
      @ericj199 11 месяцев назад

      @@Sammy-wh3vo chill, it was a year ago; admittedly, I was dumb. No need to be mean

  • @classesbyabsir2726
    @classesbyabsir2726 10 месяцев назад +1

    Well explained with clarity… amazing work

  • @ericj199
    @ericj199 2 года назад +12

    Your explanations are the best!

  • @pratishthapandey8635
    @pratishthapandey8635 3 месяца назад +1

    Thank u so much sir for this explanation 😢❤I was really struggling with this question but you made it too easy ❤❤❤

  • @kaushalkaushik6450
    @kaushalkaushik6450 Год назад +2

    Thanks alot sir you are the best🎉

  • @Ayan-z3i4d
    @Ayan-z3i4d Месяц назад

    Students want this type of teachers ❤❤❤❤❤

  • @Fused.ugh.
    @Fused.ugh. Месяц назад +2

    How can we do it if we substitute the value of the 1 in numerator

    • @vaigaaah
      @vaigaaah 19 дней назад

      After substitution, we'll cancel the same way and get "sec theta + tan theta". In order to make it the reciprocal and change + sign to - sign, we will divide AND multiply with sec theta - tan theta. And after using trigonometric identity in numerator we will get RHS

  • @athulsternypc9260
    @athulsternypc9260 4 месяца назад +5

    He actually explains in a very vague way just like giving solution to answer not explain it..

    • @KamineeSingh-wx1bw
      @KamineeSingh-wx1bw 4 месяца назад +3

      If you don't know the identity then what's the teacher's mistake in this

    • @Witty-n-Wild
      @Witty-n-Wild 3 месяца назад

      Why? He has explained it so well and took his time in explaining. You should know the basics and identities in order to understand it completely...

  • @riyapanchal2102
    @riyapanchal2102 2 года назад +4

    well explained sir
    thank you

  • @ManojKumarMaurya-w3p
    @ManojKumarMaurya-w3p Год назад +2

    Really very good explanation sir😅so much helpful

  • @kadakchai135
    @kadakchai135 Год назад +1

    6:07 i didn't understand why and how u took - minus as common

  • @GeethareddyyarrasaniGeetharedd
    @GeethareddyyarrasaniGeetharedd 5 дней назад +1

    Thank you very much sir......

    • @Mathemafia
      @Mathemafia  5 дней назад

      Welcome. Could you please tell me how did you find this video?

  • @anvitha3985
    @anvitha3985 2 года назад +3

    Thank you sir💗

  • @Abhishek_10118
    @Abhishek_10118 2 года назад +4

    superb sir, keep growing 💗

  • @SangitaYadav-q2o
    @SangitaYadav-q2o Месяц назад +1

    Absolutely 👍 nice

  • @DipuShahu-vg5wn
    @DipuShahu-vg5wn 3 месяца назад

    Thank you so much sir ❤❤❤❤

  • @ReenaDevi-m6s
    @ReenaDevi-m6s Год назад +1

    Thank you sir for your explanation

  • @Krishnaiiii_2_p
    @Krishnaiiii_2_p 2 года назад +2

    Amazing explanation

  • @plm1233
    @plm1233 Месяц назад

    5:14 sir upar wala 1 ko replace karne se nahi ho raha he please explain

    • @Mathemafia
      @Mathemafia  Месяц назад

      Fir se try Karo. It's similar solution.

    • @plm1233
      @plm1233 Месяц назад

      @Mathemafia nahi sir nahi ho raha he last me tan + sin Bach raha he divide me kuch bhi nahi he

  • @chiranjeevsanatani
    @chiranjeevsanatani 7 месяцев назад +3

    Wahe guru ji 🛐
    Radhe Radhe 🙏

  • @Youva-h4d
    @Youva-h4d 5 месяцев назад

    Hats of to you sir thanks a lot gor your patience and dedication towards your work❤

  • @kadakchai135
    @kadakchai135 Год назад +1

    6:40 I didn't understand this method but got the answer by following ur steps..still tq

  • @cintuvloggs5622
    @cintuvloggs5622 5 месяцев назад +1

    Maja aa gaya sir ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤

  • @DebosmitaSaha_15
    @DebosmitaSaha_15 4 месяца назад

    Thank youuu soo much for the wonderful explanation

  • @derekkoschiwillah9921
    @derekkoschiwillah9921 2 года назад +1

    Could you make a revision video on this chapter for standard maths?

    • @derekkoschiwillah9921
      @derekkoschiwillah9921 2 года назад +2

      Also your channel's an absolute gem! Discovered it after quite some while but glad I did

  • @arthtayal
    @arthtayal 2 года назад +3

    Very nice video
    I thought the same and now find it easy
    Thank you sir
    By the way your outro is cool
    I have subscribed you for your efforts

  • @mhandrasoni4383
    @mhandrasoni4383 2 года назад +3

    But sir (sec-tan) aur -(sec-tan) cut bhi to ho sakta he

    • @sohamsaini612
      @sohamsaini612 Год назад

      I think there is an addition sign in between.
      Also, if we cut them, we won't get the desired answer... 😊😊

    • @Fused.ugh.
      @Fused.ugh. Месяц назад

      Sorry you are not a sigma

  • @Adityasri07
    @Adityasri07 Год назад +2

    Jai Jai physics Wallah 🙏🏻✍🏻

    • @Mathemafia
      @Mathemafia  Год назад +2

      Bilkul. Par main to Maths wala hoon 😎

    • @pratishtha074
      @pratishtha074 11 месяцев назад

      wow@@Mathemafia 😂😂

  • @triptipaliwal4936
    @triptipaliwal4936 8 месяцев назад

    ❤❤❤ thanks sir really helpful ❤❤❤

  • @maluwahane9346
    @maluwahane9346 2 месяца назад +1

    🎉samajh gya 🎉

  • @nehaah07
    @nehaah07 2 года назад +7

    Best explanation sir
    I can't solve this question...my mind stuck on minus sign....
    But but but
    Becoz of your video i understand it in first time😃😇👌👌👌👍

    • @Mathemafia
      @Mathemafia  2 года назад +3

      Glad to know it helped. Keep watching and supporting.

  • @Shriramuttarkar1234
    @Shriramuttarkar1234 3 месяца назад

    Thank u so much sirrrr ❤❤

  • @belle_esperer67
    @belle_esperer67 2 года назад +2

    thankyou very much

  • @jagabandhumarndi1527
    @jagabandhumarndi1527 Год назад +1

    Sir make a video on last part that you have given suggestion.

    • @Mathemafia
      @Mathemafia  Год назад

      Try yourself. That will help.

  • @Youtubeofficialagency
    @Youtubeofficialagency 8 месяцев назад

    The last keep watching matsssss mafiaaaa was epic🎉

  • @AdityaKumar-w8w8g
    @AdityaKumar-w8w8g Месяц назад +1

    I always connected with only your video for get solution for my maths problem as your video are so clear and understandable... Thankyou 🫡 🫂
    And I love ❤🥰that part in your video at last when you say cutely mathe - mafiaa😂😂

    • @Mathemafia
      @Mathemafia  Месяц назад

      Glad my tutorials are so helpful for you. I feel energised by reading such comments. Cheers!!!

  • @InderjitKaur-u3p
    @InderjitKaur-u3p 10 месяцев назад

    Wow great ❤

  • @aarushsaini3997
    @aarushsaini3997 3 месяца назад

    Best 💯

  • @adonisahead
    @adonisahead Год назад +4

    I kept forgetting this ques I don't know why?

  • @khizzard_069
    @khizzard_069 Год назад +1

    Easiest explanation I've come so far... Thanks

  • @saubhagyagupta6354
    @saubhagyagupta6354 Год назад

    Better option is to change numerator into sec^2A - tan^2A
    Then you dont have to take minus common

  • @sakshitomar4164
    @sakshitomar4164 2 года назад +1

    Thank you so much sir

  • @VishalYadav-yg9ug
    @VishalYadav-yg9ug Год назад

    Sir can you give a hint for a second approach, as to how to solve the rhs side ?

    • @Mathemafia
      @Mathemafia  Год назад

      It is always recommended to move from more terms to lesser. On left side there are 3 terms in numerator and denominator whereas on RHS, we have only 2. So converting 2 terms into 3 will need some kind of manipulations, most of the times.

    • @VishalYadav-yg9ug
      @VishalYadav-yg9ug Год назад

      @@Mathemafia thanks sir would always keep this in mind, all the chapter are quite an easy sail for me but this trigonometric identities are quite a hustle sir. More questions i try outside ncert more comfused i am, any hints or tips sir?
      And sir would you mind solving the alternate method further which you hinted in the last minute of video.

    • @Mathemafia
      @Mathemafia  Год назад

      @@VishalYadav-yg9ug I explained how to remember trigonometric identities yesterday in my live session. Either you watch that video or you can ask it tomorrow in live session. I will explain if time permits.

    • @Mathemafia
      @Mathemafia  Год назад

      I have clearly explained what to do next to solve it with the alternate method :) Just do that. It is almost already solved.

    • @VishalYadav-yg9ug
      @VishalYadav-yg9ug Год назад

      @@Mathemafia sir i remember all the identities, problem is comprehending the question and to understand which math functions to apply so as to get the desired result.

  • @chiranjeevsanatani
    @chiranjeevsanatani 7 месяцев назад +1

    8:06 me common vala samajh nhi aaya

    • @Mathemafia
      @Mathemafia  7 месяцев назад

      Slow pace par pause kar kar ke dekho... aa jaayega samajh.

  • @nethra.a.k
    @nethra.a.k Год назад

    Bro..... Thank you so much !!!

    • @Mathemafia
      @Mathemafia  Год назад

      You're welcome! Pls share it.

  • @digambersharma1234
    @digambersharma1234 5 месяцев назад +2

    Sir why you don't teach us regular chaper wise .. i really like your explanation... the way you tech is very awesome ❤

  • @kimtaeyungfan8647
    @kimtaeyungfan8647 6 месяцев назад

    Sir aapne kaha upr niche dono trf 1 ko identity me convert kr skte h 😑 but mene jub upr liya to vo upr hu bacha h niche chaiy to niche hi lena hoga

    • @Mathemafia
      @Mathemafia  6 месяцев назад

      Pls explain your query.

  • @Akshi25
    @Akshi25 Год назад

    Thank uuuuu bhaiyaaaaa so much yaarrrr

  • @Wings_77
    @Wings_77 4 месяца назад

    Thnx sir

  • @Theface123
    @Theface123 3 года назад +4

    Sir first comment 👍🏻👍🏻👍🏻

  • @ka-52alligator48
    @ka-52alligator48 2 года назад +2

    Very easy now

  • @dawgexe
    @dawgexe 2 года назад +3

    ily sir

  • @Youtubeofficialagency
    @Youtubeofficialagency 8 месяцев назад +1

    9:29

  • @Priyankakumari-ch3us
    @Priyankakumari-ch3us 7 месяцев назад

    Tq sir

  • @chiranjeevsanatani
    @chiranjeevsanatani 7 месяцев назад

    Common Lene se pahle Tak sab samajh mein aaya but uske bad upar se gaya hai😢😢😢😢😢😢😢

  • @awesome115
    @awesome115 Год назад +3

    I have watched this 5 times still didn't understand 😭

    • @Mathemafia
      @Mathemafia  Год назад +2

      Watch it once more at slow speed and pause in between to grasp the concept. You will get it.

  • @globalgamer7172
    @globalgamer7172 Год назад +1

    Sir muhje nahi samaj Aya 2 baar dekha phir bhi😢

  • @sathviksrijith18
    @sathviksrijith18 Год назад

    sir i think this is example 15 ig

  • @Youtubeofficialagency
    @Youtubeofficialagency 8 месяцев назад +1

    9:27 😂

  • @KumkumSwarnkar-gv8ph
    @KumkumSwarnkar-gv8ph 7 месяцев назад

    Common se pahle Tak samajh as rha tha 😢😢😢😢

    • @Mathemafia
      @Mathemafia  7 месяцев назад

      Slow speed pe fir se dekho... pause kar kar ke.. aa jaayega samajh.

  • @jayshreekamble9258
    @jayshreekamble9258 10 месяцев назад

    Nhi sir yaha "koi harsh nhi hain"

  • @NeeleshBiradar
    @NeeleshBiradar 5 месяцев назад +1

    Kitna paper lenge sir😂

  • @selvi-pf6ke
    @selvi-pf6ke Месяц назад

    I didn't understand 😢

    • @Mathemafia
      @Mathemafia  Месяц назад

      Watch again at a slow pace. Pause in between. You will get it.

  • @shabddawesar
    @shabddawesar Год назад +1

    Common galat nikala hai bhai

  • @mansithakur2311
    @mansithakur2311 2 года назад +6

    Thanku so much sir☺️☺️

  • @sandipkumar-gi9fn
    @sandipkumar-gi9fn 5 месяцев назад

    Thank you sir you are the best 😊

  • @roshanchintada7312
    @roshanchintada7312 Год назад +1

    Well explained thanks

    • @Mathemafia
      @Mathemafia  Год назад

      Welcome. Please share it 🙏

  • @gamechanger406
    @gamechanger406 3 месяца назад

    Thankyou sir ❤

  • @AnmolKumar-hm6ow
    @AnmolKumar-hm6ow Год назад +1

    Thanks you so much sir g.

  • @aarushchoudhary7923
    @aarushchoudhary7923 Год назад +1

    Thx so much

  • @saurabhjain5259
    @saurabhjain5259 3 месяца назад

    Thank you so much sir