Question

(sinx+cosx) (1-2secx) find derivative​

Answer 1

Answer:

Let f(x) = sin x. cos x, which is product of two functions. So, formula of derivative of product of two functions. = – sin2 x + cos2 x = cos2 x – sin2 x = cos 2x (∵ cos2 x – sin2 x = cos2x) Hence, derivative of given function sin x cos x = cos 2x

Step-by-step explanation:

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