Question

If sin A - cos B = 0, prove that A + B = 90°​

Answer 1

Answer:

sin A - cos B = 0

sin A = cos B

sin A = sin (90-B)

A = 90° - B

A + B = 90°

Step-by-step explanation:

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Answer 2

Answer:

Hello Mate.....

Sin A - Cos B = 0

Sin A = Cos B { Cos B = Sin 90° - B)

Sin A = Sin 90° - B

A = 90° - B

A + B = 90 °

Hence Proved .

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