Question

answer the question ​

Answer 1

Answer:

1

Step-by-step explanation:

put ¢ = π/4

cotπ/4 = tan π/4 = 1

cot3π/4 = tan 3π/4 = -1

now ,. ___1____. + ___1____

1 -. (-1). 1. - (-1)

___1____. + ___1____

1 +1 1 +1

_1_. + _1_

2 2

= 1 ans