CBSE BOARD X, asked by arbaz6520, 9 months ago

If cos (A+B) =0 then what is the value of sinA

Answers

Answered by yaminisharmar20

1

Answer:

Cos (A+B) = 0

Cos (A+B) = cos 90

A+B = 90

A = 90-B

Taking sin both sides

Sin A = Sin (90-B)

Sin A = Cos B

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