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Q. 17

Evaluate the foll

Class 11th NCERT - Maths 13. Limits and Derivatives

Answer :

⇒

So,

[∵ cos2x = 1 – 2sin²x]

⇒

⇒ 4

⇒ 4

We know that

⇒ 4× 1²/1²

⇒ 4

Ans.

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