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The derivative of a sum of two or more functions is the sum of the derivatives of each function
Learn how to solve sum rule of differentiation problems step by step online.
$\frac{d}{dx}\left(\cos\left(2x\right)\right)+\frac{d}{dx}\left(\sin\left(2x\right)\right)$
Learn how to solve sum rule of differentiation problems step by step online. Find the derivative d/dx(cos(2x)+sin(2x)) using the sum rule. The derivative of a sum of two or more functions is the sum of the derivatives of each function. The derivative of the sine of a function is equal to the cosine of that function times the derivative of that function, in other words, if {f(x) = \sin(x)}, then {f'(x) = \cos(x)\cdot D_x(x)}. The derivative of the linear function times a constant, is equal to the constant. The derivative of the linear function is equal to 1.