Q1 of 52 Page 51

Find the value of the following:


(Forcos-1(cosx) type of problem we have to always check whether the angle is in the principal range or not. This angle must be in the principal range.)


So here,


Now, can be written as,




where



Hence,


More from this chapter

All 52 →
20

Find the values of each of the expression

is equal to

 21

Find the values of each of the expression

is equal to

 2

Find the value of the following:

 3

Prove that