Published by:
CGP EDU Academic Team
Published on: August 12, 2026
If 
dx = 
+ C then a + b equals to :
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(10 )
Sol. Ι = 
dx Put x = 2 tan θ ⇒ dx = 2 sec 2 θ d θ
⇒ Ι = 
= 
= 
cos θ d θ put sin θ = t ⇒ cos θ d θ = dt
= 
– 
= 
+ C = 
+ C
but tan θ = 
So sin θ = 
= 
+ C = 
+ C = 
+ C
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