Math, asked by kniha015, 2 days ago

prove that cos²A-sin²B = cos²B-sin²A

Answers

Answered by rajabhishek08141

0

Answer:

sin²a cos²b -cos²Asin²B

SIN²A(1-sin²B)-(1-sin²A)sin²B

sin²a -sin²Asin²B -sin²B +sin²Asin²B

sin²a -sin²B

R.H.S. PROVED

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