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Learn how to solve differential calculus problems step by step online.
$\frac{d}{dx}\left(4\cos\left(\pi x\right)\right)$
Learn how to solve differential calculus problems step by step online. Find the derivative of y=cos(pix)2^2. Simplifying. The derivative of a function multiplied by a constant is equal to the constant times the derivative of the function. The derivative of the cosine of a function is equal to minus the sine of the function times the derivative of the function, in other words, if f(x) = \cos(x), then f'(x) = -\sin(x)\cdot D_x(x). The derivative of the linear function times a constant, is equal to the constant.