Book: Mathematics Part-II
Chapter: 7. Integrals
Subject: Maths - Class 12th
Q. No. 21 of Exercise 7.9
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21
equals
Let I = 
⇒ I = 
⇒ I = 
[
]
⇒ I = 
π/12
∴ 
π/12
21
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equals
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equals
equals