UPSC NDA I 2025 Mathematics Paper

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Question Numbers: 91-92
Consider the following for the two (02) items that follow:
Let y=sin‌−1⁡(x−‌

4x3

27

).

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Question : 92 of 120

Marks: +1, -0

What is ‌

dy

dx

euqal to ?

‌
1
√9−x2
‌
1
√3−x2
‌
3
√9−x2
‌
9
√9−x2

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