Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If 
dx = 
tan − 1 
− 
tan − 1 
+ C then a 2 + b 2 equals to :
Text Solution
Verified by ExpertsThe correct answer is:
13
(13)
Sol. 
= 
= Ι 1 – Ι 2
Now Ι 1 = 
put x – 
= t ⇒ 
⇒ Ι 1 = 
tan –1 
Also Ι 2 = 
put x 2 = t ⇒ 2x dx = dt
⇒ Ι 2 = 
= 
dx = 
tan − 1 
− 
tan − 1 
+ c
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