Q1 of 303 Page 4

Find the principal values of each of the following:
cot^–1(–√3)

Let cot^–1(–√3) = y

⇒ cot y = –√3

= – cot = √3

= cot

The range of principal value of cot^–1is (0, π)

and cot = –√3

∴ The principal value of cot^–1(–√3) is

For the principal values, evaluate the following:

Find the principal values of each of the following:

cot^–1(√3)

Find the principal values of each of the following:

Find the principal values of each of the following:cot–1(–√3)