Proof ( How sinA+B=sinA cosB + cosA sinB)

[@ifshanee]

Very well explained sir. I appreciate the effort u put in each explanation. Thanks a lot.

[@Siddhumathsclasses]

play.google.com/store/apps/details?id=co.classplus.siddhu

[@cadetNarayan3910]

Badhiya sir, I am in class -10 ,I got it interesting

[@AstivX]

U teach a lot better than others but u got less support as compared.. thanks for it

[@vishalbansal6925]

At 6:15 min sir told that third angle is equal to A due to two congruent triangle due to RHS which is WRONG
Angle RPM is equal to A because in two traingles both two angles are equal so from the rule of 180 deg sum third angle has to equal in both

[@abhi068]

Thank you sir please upload videos of log specially theory.your teaching idea is perfect.

[@hugehammer]

Thank you sir very well explained. Full proof is crystal clear

[@niyorkonabora3191]

Very amazing explanation sir, thank you very much.

[@mohdsuhail3809]

Thank you so much sir
Op explanation... 🔥🔥🔥🔥

[@defeat7774]

Sir,maza aagaya.👍🏻👍🏻

[@Venkyy]

Thank you very much sir. Your teaching was extraordinary. It is purely doubtless.🙂🙂🙂😌

[@muzamil1324]

Thanku very much sir .i m from kashmir ur lecture is very nice as comport to another teachers .

[@Siddhumathsclasses]

Download our App Siddhu maths classes from play store

[@Rishikeshsaha2574]

Sir how two triangles become congruent by RHS rule it is similar by AA rule and so the pair of third angles will become equal

[@chiragsharma3721]

Same question by AA similarity triangles are similar

[@binodkeabba6464]

See triangle ONK and PKK
Now angle OKN = PRM (V.O.A.)
So angle angle N is equal to angle PMK ie 90 degree hence ie they are right angle triangles
Hence we used RHS to get angle PMK = Angle NOK
Now

[@Rahulkumar-ng1rf]

Nice sir aapka samjhane ka experience best hai sir g

[@ashutoshmishra9557]

Very nice video sir I am really wants a video like this.

[@gobindachandrabehera1669]

Sir your teaching is very fantastic & concept clear

[@AnkitSharma-it3cn]

Sir you are a best teacher.

[@deborshipurkayasth3866]

your video is very good thanks for making this video 😊😊😊

[@SanjivKumar-nl4xi]

Excellent teaching

[@Aditinagp]

Thankyu sir.

[@Himanshumishra3071]

Sir ji bhot badhiya

[@Vibranium375]

Actually a more elegant proof is by matching the real and imaginary parts of e^(i(a+b)) using Euler's identity but this is good as well

[@mithil_7984]

Thank you so much sir....
Sir i have searched for many videos for this topic but didn't understand anything... But now only and only because of you I understood this topic very well..... Thank you so much sir once again ❤❤❤

[@Siddhumathsclasses]

❤️

[@mithil_7984]

Sir plz pin my comment sir...
It's my dream sir.... Plz sir 😍😍😍

[@giornogiovanna9475]

@@mithil_7984 abe jaa

[@mithil_7984]

@@giornogiovanna9475 kon tuu!??

[@creative_corner564]

Sir mast padhaya aapne! Me formula ratta nahi to samajne ke liye apka video best tha.

[@Siddhumathsclasses]

Thanku

[@skeleton56799]

Bht hi zabardasth

[@kakulidas101]

Amazing explanation sir , thankyou sir❤️

[@cricketwala1382]

You will rise
That's my believe

[@lordbobby198]

Finally someone who is using whiteboard

[@freefireshorts3387]

Yes 😂

[@shjain5641]

Thank you sir very very thank you

[@neharaj3389]

You are rellly mathematics majician sir for me 😍😍😍😍

[@Siddhumathsclasses]

play.google.com/store/apps/details?id=co.classplus.siddhu

[@tkr_vlogs7894]

Thnku so much sir.....
U explained this very briefly....
U cleared all my doubts....thnxxxx😊😊😊😊

[@Himanshumishra3071]

Aap padhate badhiya hain

[@IshmeetSinghBaweja]

I am in class Xth but I understood this concept very well after this video. Thanks sir!

[@cadetNarayan3910]

Me same

[@rakeshml6093]

sir why did you multiply and divide PM to PR/OP and why did you multiply and divide OM to MQ/OP only why not both divided by OM or even PM

[@Siddhumathsclasses]

Just to make Complete triangles.
PM contributes to different triangle and OM contributes to different triangle.

[@tarunkumaragrawal432]

Nicely explained.

[@sanjaykumarrathore3412]

I thing ye formula ka derivation nahe hai….bus jo hume formula pta hai usko satisfy kar rahe hai😅

[@factech1841]

Brilliant e

[@ricksarkar2556]

Love You Sir Ji Thank you so much

[@ShivParkash-hl9sj]

Kaise pta chal gya phle se hi

[@hamiltonian450]

angle NOK is indeed equal to angle RPM but not by RHS as the two triangles and not congruent they are similar

[@ManishKumar-re3tf]

Thank s from Bihar

[@Rajapushprajvlogs]

Thank you sir,I am satisfied

[@Siddhumathsclasses]

Thanks

[@hollysingh7191]

Sir apne sine(a-b) ki vidio banayi hai agar banayi hai to sir plzz send me link

[@harshraghav5270]

Nice way of teaching 🙂🙂

[@ramlakhanmathur6003]

that is very useful derivation for me

[@shivampathak1014]

Lazawab

[@dipakkeshri3526]

Sin(A-B) =sinA cos B - cos A sinB

[@mehrajuddinbaba6127]

Thanks a lot۔very good style of making understand

[@Aman-br1ph]

It would better if u use in the reference of coordinate

[@LifeRelevant]

شکریہ

[@dominator3341]

best

[@SanjivKumar-nl4xi]

Well done

[@mathomagicamansir4116]

Very nice sir 👍👌

[@0_Rohit_Chaurasiya]

At 6.28 ...
How can you proof that angle is equal to another... because vertical angle is not belonging to another triangle..
Please explain it

[@freefireshorts9578]

If two angles in a ∆ are equal than the third angle is also equal
Sum of all int. angles in ∆ is 180
Let one angle be A and second angle be B
Third will be 180-(A+B) in both cases

[@cheeta6379]

good !! thanks ! ❤️💙

[@जयश्रीरामजयश्रीहनुमान-झ1य]

It can also be done by complex no. Concept eular form (e^i@=cos@+isin@) put value and get your result in 4 lines 😋😋

[@sanvidmehta6893]

I barely understand Hindi yet this was so clear I was able to understand it. Great Job!!

[@priyankajalal884]

sir ncert ke basis par samjao na radius 1 unit lekar wali method se

[@siyaramkumar6337]

How would you prove if A+B>90°

[@SoniGupta1933.]

Great sir 🙏

[@Siddhumathsclasses]

Thank you

[@Deepakmorningstargamer]

Sir your teaching is doubtless.I learn trigonometry formula.

[@gamersurya5347]

Sir kya aise questions 2021 board me aayenge?

[@erinadahal5522]

How it became that PR/PM= CosA when it lies in B angle

[@vamshimadhava]

Thank you bhai .

[@0_Rohit_Chaurasiya]

At 7.32 ..
How RN will be equal to MQ...
MQ is greater than RN
..
Please explain it Sir

[@rishavbro6931]

Bro RN is Of same length as MQ since RMQN is a rectangle and these 2 are opposite sides.

[@pianoplanet8198]

Can someone tell from where has this question been taken and which class question is this?

[@Bhajan_Anand07]

🧐🧐🧐 ... 11th

[@kishanthakor2384]

Supper sir.... Thank uuu sir...

[@prahaladmeena1337]

थैंक्यू सर

[@bhanumatigarai9087]

👍🏻👍🏻👍🏻👍🏻👍🏻

[@amitdey7694]

RHS kaise hua oh samajh nehi aaye

[@Jayanttomar17]

Sir, How RN=MQ (?)

[@redevildrago6066]

Sir mere clg main kon sa ki pie gusa dalinge

[@himanshuvaish5866]

Sir please upload cos(a+b)= cosa cosb -sina sinb vector se

[@sharifashaik9861]

How angle M and angle N are vertically opposite

[@sahilchaudhary2606]

Sir apne angle RPM ko bhi angle A hi kyon le lia

[@hemaldoshi1443]

Sir I know how to prove sin(a - b) = sina cosb - cosa sinb

[@Siddhumathsclasses]

Just similar to this proof

[@hemaldoshi1443]

@@Siddhumathsclasses thank you sir

[@kalyansundaram3500]

Fantastic way of teaching. Thanks Sir

[@preetibhardwaj1071]

Make videos for other formulaes too

[@ishmitclases3304]

Very good chacha ji

[@ShivParkash-hl9sj]

Sabki taraha aap bhi ratkar aate hai aur fir padate hai ye sab kya h ye nhi bataya ki PM ki Guna bhag kyun karaee

[@gurvindersidhu1698]

Nice sir g

[@krishnabhargava3409]

Your videos are very good

[@manishvishwakarma696]

Thanks

[@arunkumar4u]

RHS se kaise Angle P ko A kar diya

[@angadsharma3028]

Sir PM and OM se hi multiply kyo karenge

[@sangeetaagrawal5447]

Taki identity prove kar sake

[@sangeetaagrawal5447]

Kyo ki esa karne se hi identity prove hogi

[@rofiulhussain5530]

👍👍

[@biswajitmohan1444]

NICE EXPLANATION

[@user-xh6fx7ju6u]

Other formulas vi video daldijiye plz

[@cricketlife1939]

Kya bathe

[@kaberigogoi1574]

THANKS sir

[@arunimakumari497]

you are great sir

[@stimulantdaimamld2099]

excellent

[@adiityagi9339]

well!!....explanation sir...;)

[@mehrabhossain2000]

Love from Bangladesh

[@pradeepbabu7393]

Triangle congruent kaise ho jaige rhs se

[@akashyadavgopalganjse2652]

Super

[@keshabanandamoharana3172]

Thank you sir

[@classychampion.9]

Sir humko kucch samajh me nahi aata h please help me

[@Siddhumathsclasses]

play.google.com/store/apps/details?id=co.classplus.siddhu

[@animeshsingha5536]

Sir rotate Kyun kar rahe ho

[@dipakkeshri3526]

Ye wala solve kar dijiye *sir*

[@eeshanbhattacharjee3704]

Thak you sir 🙏