Find the derivative of $\frac{d}{dx}\left(\sin\left(x\right)\left(\sin\left(x\right)+\cos\left(x\right)\right)\right)$

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Learn how to solve sum rule of differentiation problems step by step online. Find the derivative of d/dx(sin(x)(sin(x)+cos(x))). Apply the product rule for differentiation: (f\cdot g)'=f'\cdot g+f\cdot g', where f=\sin\left(x\right) and g=\sin\left(x\right)+\cos\left(x\right). 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 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)}.