Find the principal value  of cot–1(1)

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

We know that for any x Î R, cot–1 x denotes an angle in (0, p) whose cotangent is x

cot–1 (1) = An angle in (0, p) whose cotangent is (–1)

cot–1 (–1) =

Answered by  | 4th Jun, 2014, 03:23: PM