Question

find the value of cot 135 degree​

Answer 1

Step-by-step explanation:

Cot 135=cot(90+45)

=-tan45

=-1

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Answer 2

Answer:

cot135 = -1

Step-by-step explanation:

cot(90+x) = -tanx

How to check whether + or - sign

1 st quadrant

angle = 0to90 degree

All sin cos tan positive

2 nd quadrant

Sin and cosec positive

3rd - Tan or Cot positive

4th - Only cos or sec positive