Question

Tan A = cot B . then ​

Answer 1

tan A = cot B ------------ ( eq. i) { given }

also, tan A = cot ( 90 - A ) ------------ ( eq.ii )   { complimentary angle }

From eq. i & ii -

 cot B = cot ( 90°- A )

⇒ B = 90° - A.

⇒ 90 ° = A + B.

⇒ A + B = 90 °. [ PROVED ] .

Answer 2

Answer:

90°

Step-by-step explanation:

A = 90 + B

A + B = 90