If y = e tan x , then cos 2 x d ^ 2 y dx ^ 2 =

Mathematics · JEE Advanced · NTA Exams — Limit, Continuity and Differentiability

1. (1 – sin 2 x)\(\frac{\mathrm{dy}}{\mathrm{dx}}\)
2. –(1 + sin 2x) \(\frac{\mathrm{dy}}{\mathrm{dx}}\)
3. (1 + sin2 x)\(\frac{\mathrm{dy}}{\mathrm{dx}}\)
4. None of these

Answer

(C) (1 + sin2 x) dy dx

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