Use Quotient Rule: To find the derivative of the function g(x)=xsin(x), we will use the quotient rule. The quotient rule states that if you have a function h(x)=g(x)f(x), then h′(x)=(g(x))2f′(x)g(x)−f(x)g′(x). Here, f(x)=sin(x) and g(x)=x.
Find f′(x): First, we need to find the derivative of f(x)=sin(x). The derivative of sin(x) with respect to x is cos(x). So, f′(x)=cos(x).
Find g′(x): Next, we need to find the derivative of g(x)=x. The derivative of x with respect to x is 2x1. So, g′(x)=2x1.
Apply Quotient Rule: Now we apply the quotient rule. We have f′(x)=cos(x) and g′(x)=2x1. Plugging these into the quotient rule formula, we get:g′(x)=(x)2cos(x)⋅x−sin(x)⋅(2x1).
Simplify Expression: Simplify the expression by multiplying through by x and combining terms:g′(x)=xcos(x)⋅x⋅x−sin(x)⋅(21).This simplifies to:g′(x)=xcos(x)⋅x−2sin(x).
Final Derivative: Finally, we can simplify the expression further by dividing each term by x:g′(x)=cos(x)−(2xsin(x)).This is the derivative of g(x).
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