i am not exactly a maths student but a doctor came here just for an amateur interest in trigonometry, thoroughly enjoyed your class, you are a great teacher 👍
The hw answer is 2 the correct way to do so is to take 2 out, so you will be left with Sin^2 25* + Sin^2 65*, =2[Sin^2 25* + Sin^2 (90-25)*] =2(Sin^2 25* + Cos^2 25*) Since, Sin^2 + Cos^2=1 =2(1) =2
we cannot add angles, the correct way to do so is to take 2 out, so you will be left with Sin^2 25* + Sin^2 65*, =2[Sin^2 25* + Sin^2 (90-25)*] =2(Sin^2 25* + Cos^2 25*) Since, Sin^2 + Cos^2=1 =2(1) =2
Thank you sir for making it crystal clear to us. Mujai kabhi yay trigonometry samj nhi aati thee but aapke 2 videos dekh kar now i can solve trigonometric questions. Today i realized that no subject is boring its the teacher who makes boring. Our teachers made it boring
Hi from Ireland. I am watching this video just to refresh my memory of formulas that I have half forgotten. Thank you for making the video. Worthwhile watching.
Sir , i am such a blunt student having complete anathema in solving from Bhutan but your video is encouraging me not to drop maths sir...grateful for your teaching....sir...
Wow. You are helping us students. And I am very happy to find your channel. And as for the homework question, I got stuck and my answer got incorrect because I should have written down the identities. Sin(90-theta)=cos(theta) Cos(90-theta)=sin(theta) Tan(90-theta)=1/tan(theta) To anyone who is still doing the homework problem, take Mr. Manocha's advice for writing identities down. From a comment on this video, one person said they used the identity sin^2+cos^2=1 to help solve the problem. To students watching the video, I know there's a lot of people getting the right answers. But if you're not, keep going. There's multiple students here trying to get better at math.
Trigonometry is a great chapter to learn. It's an interesting topic, and the formulas(half angle,compound angle) might seem a bit hard and confusing. But trigonometry is something which is so important to learn and practice.It is really helpful, even in higher standards.Math is fun and also easy. Easy peasy lemon squeezy🙂
SIR..we don't have the enough time to do sloving trigonometry functions in polycet exams so any shotcut to identify the ans. plz tell ans. without solving the questions it helps us to identify fast in polycet examination. plz reply my ques.sir.
According to your diagram considering the triangle is right angled at B, Or,sin(B+(90°-A)/2) Or,sin{(180°-A)/2}=cos[{90°-(180-A/2)}]=sin{(180-A)/2}=cos(A/2)
I was not really aware of trigonometry...I just came into 8th IIT and the first chapter is this one..At times when my brother studied this one he said that it is so hard to learn..I thought it is easy because it is easy if I understand..When this chapter entered it is not easy to understand!! practice..practice..😔It was now soo easy..That is because of you...Thank you so much sir..😊🤗
Sir...! Which foundation books are better to prepare for iit..? Present I'm studying 9th..and I'm the student of iit/neet...! Please can you gave an a hint to prepare sir..!
i am not exactly a maths student but a doctor came here just for an amateur interest in trigonometry, thoroughly enjoyed your class, you are a great teacher 👍
Glad you enjoyed it!
Bro super
Aduka
Same here😅😅
Same here...
The hw answer is 2
the correct way to do so is to take 2 out, so you will be left with
Sin^2 25* + Sin^2 65*,
=2[Sin^2 25* + Sin^2 (90-25)*]
=2(Sin^2 25* + Cos^2 25*) Since, Sin^2 + Cos^2=1
=2(1)
=2
Thank you so much! You showed steps too! You helped me check my answer.
I m watching in 2024 bre I am ultra legend😂😂😂😂😂
😅
same boi but tom is my final 2nd sem math exam💀💀💀💀☠☠☠☠☠☠☠☠
Mere jee advanced exam hai day after tomorrow😢😢
Wo bhi 6th STD meh
I am ultra lagend promax who is watching in 2024 on feb month😂😂
The homework question solution is 1/√2
How,
2sin^25+2sin^65
Taking common 2sin^
Then,
2sin^[25+65]
=2sin^=90
Sin^=90/2
Sin45=1/√2
Hence proved.
we cannot add angles, the correct way to do so is to take 2 out, so you will be left with Sin^2 25* + Sin^2 65*,
=2[Sin^2 25* + Sin^2 (90-25)*]
=2(Sin^2 25* + Cos^2 25*) Since, Sin^2 + Cos^2=1
=2(1)
=2
I felt very sad because I didn't know anything from trigonometry, but your video helped me very well thank you
2024,anyone?
meeh
Yup
mhm
Sir, the answer is 2 because 2sin^2 25+2[sin^2(90-25)] =2(sin^2 25+cos^2 25)=2x1=2
Is there any legends who seeing this on 2023 just like me😂😂😅😅😅
Me 😂
✋
Me
Me😂😂😂
Me A legend
Thank you sir for making it crystal clear to us.
Mujai kabhi yay trigonometry samj nhi aati thee but aapke 2 videos dekh kar now i can solve trigonometric questions.
Today i realized that no subject is boring its the teacher who makes boring. Our teachers made it boring
Sir u explain better than my teacher in school continue that even I am not English and I can understand what ur saying...
Thanks for liking
Good
Hi from Ireland. I am watching this video just to refresh my memory of formulas that I have half forgotten. Thank you for making the video. Worthwhile watching.
Sir , i am such a blunt student having complete anathema in solving from Bhutan but your video is encouraging me not to drop maths sir...grateful for your teaching....sir...
Very nice video, anybody who needs maths help from me should indicate too, it's nice to help
Iam graduated in civil Engineering ..Watching your videos for refreshing my knowledge..
Glad to hear that
Hope to see your *1 million family* soon
Your teaching is dam awesome sir❤❤
Thanks a ton
@@ManochaAcademy Is the Answer 2???
Wow. You are helping us students. And I am very happy to find your channel.
And as for the homework question, I got stuck and my answer got incorrect because I should have written down the identities.
Sin(90-theta)=cos(theta)
Cos(90-theta)=sin(theta)
Tan(90-theta)=1/tan(theta)
To anyone who is still doing the homework problem, take Mr. Manocha's advice for writing identities down.
From a comment on this video, one person said they used the identity
sin^2+cos^2=1 to help solve the problem.
To students watching the video, I know there's a lot of people getting the right answers. But if you're not, keep going. There's multiple students here trying to get better at math.
Trigonometry is a great chapter to learn. It's an interesting topic, and the formulas(half angle,compound angle) might seem a bit hard and confusing. But trigonometry is something which is so important to learn and practice.It is really helpful, even in higher standards.Math is fun and also easy.
Easy peasy lemon squeezy🙂
Legends only open his videos before exam 😁😅😅
Sir u are great
U are teaching all the subjects in a great manner and every student will understand ur class 🙏🙏🙏
Keep watching
Watching this the night before exam 💀😭
Sir you are teaching very well sir can you tell Inequation chapter 🙏🙏
Really helped Sir
Perfect for revision before an exam
Made my concepts even clearer
Thanks a lot Sir 😊
Most welcome
Complementary angles r removed from trigonometric identites for the upcoming board examinations 2020-21
2sin^2 25+2sin^2 65
2(sin^2 25+sin^2 65)
2(sin^2 25 +cos^2 25)
sin^2 C +cos^2 C=1
2*(1)
=2
Nice:!!
Oh thanks I was looking for it. I tried it too but didn't get the right answer.Now I can figure out where I was doing wrong.
SIR..we don't have the enough time to do sloving trigonometry functions in polycet exams so any shotcut to identify the ans. plz tell ans. without solving the questions it helps us to identify fast in polycet examination. plz reply my ques.sir.
Your teaching style is awesome sir😘😘
Thanks a ton
Circles and area related to circles
Sir how we find out that this sin or cos in sums
Thank you Sir for the easy explanation, now I understand trigonometry
Sir plzz make sure that u choose more complicated questions
According to your diagram considering the triangle is right angled at B,
Or,sin(B+(90°-A)/2)
Or,sin{(180°-A)/2}=cos[{90°-(180-A/2)}]=sin{(180-A)/2}=cos(A/2)
Sir Your way of teaching is out of the box
Thanks
Nice teaching Sir.....excellent explaining
Thanks and welcome
HW answer is 2 the lecture was also very nice🤗🤗🤗😃
How?,I tried it a lot but didn't get .
@@sidra884 Find the value of 2 sin²25° + 2 sin²65°.
Answer : 2 sin²25° = 2 cos² 65
→ 2 cos²65 + 2 sin²65
→ 2 ( cos²@ + sin²@ )
→ 2*1 = 2
Awesome video... Easy to learning and understanding.. Very nice video sir
Thanks sir.... 🤗🤗🤗
Always welcome
You are great teacher of math subject for trigonometry ❤❤❤❤❤❤❤
I was not really aware of trigonometry...I just came into 8th IIT and the first chapter is this one..At times when my brother studied this one he said that it is so hard to learn..I thought it is easy because it is easy if I understand..When this chapter entered it is not easy to understand!! practice..practice..😔It was now soo easy..That is because of you...Thank you so much sir..😊🤗
which school😊
I enjoyed your class and love it so much
Now I am able to understand these trigonometric identities very clearly..
Thank you so much for explaining in the most easiest way..sir
Sir your teaching method is excellent
Thanks
It is very understandable lesson.
You are the best teacher
Thanks
2(Sin² 25+ cos²25) =2(1)= 2
Thank you
Sir you are teaching supperly,i understood all
Many doubts cleared thankyou so much to Mancha Academy. Let Manocha Academy be a very famous RUclips channel.
Thank you so much 🙂
U r explaination is very excellent sir....... Thank you so much sir....
I appreciate monocha Academy for its service delivery
Super vedio sir really LEARNING SCIENCE AND MATHS IS EASY AND FUN okay sir I'll coperate with you and let's learn every day from every day life
Sir u r teaching exllent sir and it very use full
Sir i like your videos more because you say very clearly in this videos thank you sir😊😊😊😊
I like you are saying FRIENDS ......
thank you so much sirr
Always welcome
2sin>65+2sin>25.
=2cos>25+2cos>65
=4(2cos>90)
=4(0)
=0
Sir the way you teach is very simple
Thanks and welcome
Yayyy😂😂😂 sir cute❤ 49:50
For other terms why did you change sir tan1,tan2,tan3............tan89 in centre and we put tan 60 also sir
I like ur teaching sir
Ur amazing in telling
I understand urs teaching easily
Tq ......sooo...much.....sir....
You're most welcome
THE ANSWER IS 2..........
Attractive and stunning video for school students Sir ..........😀😀😁😁👏
You are the great sir
Thanks
Sir answer of the homework question is 2.
Ur explanation is owsem sir
Thank you very much sir
This lesson really helped me
Also sir just to ask could you make a live lesson on maths for simultaneous equations
Sir your teaching is perfect 👌
You should have 1 million subscribers
Thank you so much 😀
@@ManochaAcademy no problem
I love your videos and live lessons
Thank you so much !! it helped me a lot sir ....
Glad to hear that
i dont even know a single sum in trigonometry,but u made it easy for me
Glad to hear that
SIR CAN YOU POST VIDEO ON MOLE CONCEPT AND STIOCHEMISTRY CLASS 10 ICSE
@@_tamizharasanj_4455 yes👍
Sir do area related to circles lesson
Sir...! Which foundation books are better to prepare for iit..? Present I'm studying 9th..and I'm the student of iit/neet...! Please can you gave an a hint to prepare sir..!
Rdsharma
Wow super explanation sir
Tq very much
Really great teacher
Ur teaching is too good sir and easy to understand. Thank you so much sir
You're most welcome
Super sir awesome Ur teaching
You are explaining very clearly
Thanks
How are you explaining all physics chemistry and also mathematics that's so great sir
I excited for your teaching style
Thank You Sir
Most welcome
Hi sir I can understand easily the way you teach lessons
Sir why we are studying tgm and how it is applicable in reality.
Am too in 10th and just got across this fearful chapter.What I 've understood is that We can find height of tall buildings using tgm ratios!
Sir your explanation is too goood
Thanks for liking
Sir=family=♥️... great explanation sir👏🙏
1:48. Started the video ♥️❤
This is really understandable
Great !
Well great...............!
Thank you so much sir. Your the only one who teaches in English. And the way you explain is extraordinary.
Most welcome
Sir why don't you create a new app
Way of teaching goooooooood
Your teaching is awesome sir🙏❤️
Thanks a ton
What is the fundamental ratios of trigonometry
excellent sir
Many many thanks
Sir your teaching has helped me a lot in exams. Thank you so much sir
Glad to hear that
Hi
Amazing sir ur teaching 👌👌
Thanks and welcome
Tq so much sir
Welcome
Sir once you explain a table regarding relation between trigonometric values like
I love your tutorial sir you always make things easy for me more love
Thanks for liking
Sir please take classes of integration
Thank you so much sir actually I was not understanding anything I taught this is tough lesson now u made this lesson easy to me 🙂. thankyou so much
It's my pleasure
15:44 sir how did cos change to sin, I still don't get it.
Sin opposite is cos
Sir how much mark did u have in your 10 board exam ?
Sir your teaching is very awesome sir
Thanks for liking
Sir please make a video on circle theorem. U are so perfect
Wonderful that was the clear session may god bless you sir
Many thanks
Find the value of 2 sin²25° + 2 sin²65°.
Answer : 2 sin²25° = 2 cos² 65
→ 2 cos²65 + 2 sin²65
→ 2 ( cos²@ + sin²@ )
→ 2*1 = 2
thanks
@@prasoon7916 You're Welcome
Thank
How did that sin2 changed to cos2??
8:05 why we multiplied the (1+sinθ) sir could u explain me?
This is called rationalization method ...
Answer of hw question is 2.