Q1 of 303 Page 4

Find the principal values of each of the following:
sec^–1(2)

Let sec^–1(2) = y

⇒ sec y = 2

⇒ sec()

The range of principal value of sec^–1is [0, π]–{}

And sec = 2

∴ The principal value of sec^–1(2) is .

Evaluate each of the following:

Find the principal values of each of the following:

sec^–1(–√2)

Find the principal values of each of the following:

Find the principal values of each of the following:sec–1(2)