{6 MARKS} Derive Cos(x+y)= cosX CosY - SinX SinY

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  1. Prajwal D
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Bro today is my exam. Extraordinary explanation bro thank you. Keep it up don't give up.

niranjanam
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Thank you soo much ....good explaination..

diviesther
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Thanks a bro it helped me a lot my exam is gonna start after 30 min lol thanks a lot

shreeeeyha
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thank you brother this video helped me a lot

ARGraphicsPro
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Why p1 is sine x and cos x plz tell me reason

PramodKumar-qutq
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Macha sakath easy haage haleu kotte 😂😂

nirmalhriday
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I think you have done a mistake by saying 2-2 in the final step because you cant do that as 2 is multiplied with cos(x+y)

Correct step would be to divide both side by -2 to eliminate that other -2 because first will be eliminated by subtracting 2 from both sides

Shadaj-Nishad
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How p1p3=p2p4 and triangle P1OP3 and P2OP4 are congruent

saurabhsharma
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Bhai sahab aap ka likha kuch Dikhta to he ni

ManishKumar-pyxs
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