Math, asked by routsuraj00, 3 days ago

if cos-1 (x/2) + cos-1 (y/3) = theta , prove that 9x²- 12xy cos theta + 4y² = 36sin² theta

Answers

Answered by InsaanGamer

33

Answer:

see the image

Step-by-step explanation:

Given as cos-1 (x/2) + cos-1 (y/3) = α

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