Derivatives of Trigonometric Functions?

find the derivative of f(x) = 2 cos x - 3 sin x
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find the derivative of f(x) = 2 cos x - 3 sin x

Let y = 2.cos(x) - 3.sin(x)

Then,

dy/dx = -2.sin(x) - 3.cos(x)

by Level 11 User (81.5k points)

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