Question

Given tanA and cotB ,prove that A+B=90°

Answer 1

Answer:

Step-by-step explanation:

Tan(90-a)+cot b

Cot a+cot b=90degree

Cot cot get cancelled

So a+b=90degree

Answer 2

tanA = cotB

tanA = tan(90 - B)

A = 90 - B

A + B = 90