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RD Sharma - Volume 1

11. Differentiation

Exercise 11.1

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Exercise 11.2

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Exercise 11.3

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Exercise 11.4

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Exercise 11.5

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Exercise 11.6

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Exercise 11.7

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Exercise 11.8

1 2 3 4 A 4 B 5 A 5 B 5 C 6 7 A 7 B 8 9 10 11 12 13 14 15 16 17 18 19 20

MCQ

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Very short answer

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Q. 55.0( 2 Votes )

Choose the correc A. –1/4

B. –1/2

C. 1/4

D. 1/2

Class 12th RD Sharma - Volume 1 11. Differentiation

Answer :

∵ sin2x = 2 sin x cos x

⇒ sin x = 2 sin x/2 cos x/2

∵ sin²x/2 + cos²x/2 = 1

Dividing by cos x/2 we get

Taking – common

∵ 0 ≤ x ≤ π/2

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