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NDA Math Differentiation

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For the next two (02) items that follow:
Consider the curve x=a(cos‌θ+θ‌sin‌θ) and y=a(sin‌θ−θ‌cos‌θ)

[NDA II 2014]

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Question : 58 of 64

Marks: +1, -0

What is

sec2θ
−cosec2θ
sec3θ
aθ
None of the above

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