Book: RS Aggarwal - Mathematics
Chapter: 4. Inverse Trigonometric Functions
Subject: Maths - Class 12th
Q. No. 12 of Exercise 4B
Listen NCERT Audio Books to boost your productivity and retention power by 2X.
12
Find the principal value of each of the following :
[Formula: cos(2π – x) = cos (x), as cos has a positive vaule in the fourth quadrant. ]
= 
[Formula: cos-1(cos x) = x
= 
