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Find the derivative of y = sec4x - tan4x. |
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Answer» y = sec4x - tan4x \(\therefore\) \(\frac{dy}{dx}\) = 4sec3x \(\frac{d}{dx}\)sec x - 4 tan3x \(\frac d{dx}tanx\) = 4 sec4x tan x - 4 tan3x sec2x = 4 tan x sec2x (sec2x - tan2x) = 4 tan x sec2x |
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