Q. 14.2( 79 Votes )

Find the value of

Class 12th NCERT - Mathematics Part-I 2. Inverse Trigonometric Functions

Answer :

(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,

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