Question

If tan A = cot B, prove that A + B = 90°​

Answer 1

Answer:

tan A= cot B

tan A =tan(90-B). (cot tita= tan (90-tita))

COMPARING ANGLES

A=90-B

A+B=90

HENCE PROVED......

Answer 2

Answer:

tan A = cot B

cot ( 90- A ) = cot B

cot cancelled on both sides

90-A = B

A + B = 90

hence proved