Book: RD Sharma - Mathematics (Volume 1)
Chapter: 4. Inverse Trigonometric Functions
Subject: Maths - Class 12th
Q. No. 3 of Exercise 4.12
Listen NCERT Audio Books to boost your productivity and retention power by 2X.
3
Prove the following results: Solve the following:
cos-1x+sin-1x/1-π/6=0
Given:- 
Take
⇒ 
We know that, Formula
Thus,
⇒ 
We know that, Formula
Thus,
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ x = ±1
