Question

prove that ...............no.10

Answer 1

Hey !!

well : Here is ur solution !!

sin²A cos²B - cos²A sin²B

sin²A(1-sin²B ) - (1 - sin²A ) sin²B

sin²A -sin²A×sin²B- sin²B + sin²A ×sin²B

change cos² into (1-sin²)

so,

sin²A - sin²B =RHS simple

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Hope it doesn't help you !!☺

@Rajukumar111
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Answer 2

Hope this help........