Evaluate each of the following: The image shows the mathematical expression tan^(-1)(1) + cos^(-1)(-1/2) + sin^(-1)(-1/2).

Q3 of 303 Page 4

Evaluate each of the following:

Let

Then tan x = 1 =

……(i)

Let

Then cos y =

……(ii)

Again,

Let

Then sin z =

……(iii)

Now,

= [from (i), (ii), (iii)]

For the principal values, evaluate each of the following:

Evaluate each of the following: