Book: RD Sharma - Mathematics (Volume 1)
Chapter: 4. Inverse Trigonometric Functions
Subject: Maths - Class 12th
Q. No. 3 of Exercise 4.9
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3
Evaluate: 
.
A. Let 
and 
⇒ 
and 
where 
To find: 
⇒ 
..eq(i)
As 
⇒ 
as 
⇒ 
⇒ 
Also, 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
Putting these values in eq(i)
⇒ 
⇒ 
⇒ 
