Book: Mathematics Part-II
Chapter: 7. Integrals
Subject: Maths - Class 12th
Q. No. 17 of Exercise 7.9
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17
Evaluate 
Let I = 
⇒ I = 
⇒ I = 
[
]
⇒ I = 2 (tan π/4 – tan 0) + � ((π/4)4 – 0) + 2 (π/4 – 0)
⇒ I = 
⇒ I = 
∴ 
19
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