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find derivative if y=(secx+tanx)(secx-tanx)

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trigonometric-identities

asked Dec 8, 2016 in CALCULUS by anonymous

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1 Answer

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The equation is

Sum or difference property:

Apply sum or difference property of the equation.

Trigonometric identity:

Differentiate on each side with respect to .

The derivative of is

answered Dec 8, 2016 by Anney Mentor

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