prove that(sin^2)A×(cos^2)×B-(cos^2)A×(sin^2)×B=(sin^2)A-(sin^2)× – InterviewSolution

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1.

prove that(sin^2)A×(cos^2)×B-(cos^2)A×(sin^2)×B=(sin^2)A-(sin^2)×B

Answer»

L.H.S.

sin²a cos²b -cos²Asin²B

SIN²A(1-sin²B)-(1-sin²A)sin²B

sin²a -sin²Asin²B -sin²B +sin²Asin²B

sin²a -sin²B

R.H.S. PROVED

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