Question

What is cotangent 135?

Answer 1

find cot (135)

Ans: - 1

Explanation:

`cot (135) = 1/tan(135)`. Find tan (135)
tan (135) = tan (-45 + 180) = tan (-45) = - tan 45 = -1
Therefor, `cot (135) = 1/(tan) = - 1`