Book: Mathematics Part-II
Chapter: 7. Integrals
Subject: Maths - Class 12th
Q. No. 3 of Exercise 7.9
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3
Evaluate 
Let I = 
[
]
⇒ I = 4× (16 – 1)/4 – 5 × (8 – 1)/3 + 6 × (4 – 1)/3 + 9 × 1
⇒ I = 15 – 5 × 7/3 + 2 × 3 + 9
⇒ I = 15 – 35/3 + 6 + 9
⇒ I = 30 – 35/3 = (90 – 35)/3
⇒ I = 65/3
∴ 
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