Book: Mathematics Part-II
Chapter: 7. Integrals
Subject: Maths - Class 12th
Q. No. 3 of Exercise 7.10
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Evaluate the integrals using substitution.
Given: 
Let x = tan θ ⇒ dx = sec2 θ d θ
When, x = 0, θ = 0 and when x = 1, θ = π /4
Let
By applying product rule as,
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