The functions f(x) and g(x) are differentiable. The function h(x) is defined as: h(x)=g(x)f(x) If f(9)=6, f′(9)=4, g(9)=2, and g′(9)=−3, what is h′(9)? Simplify any fractions. h′(9)=
Q. The functions f(x) and g(x) are differentiable. The function h(x) is defined as: h(x)=g(x)f(x) If f(9)=6, f′(9)=4, g(9)=2, and g′(9)=−3, what is h′(9)? Simplify any fractions. h′(9)=
Given function and derivative: We are given the function h(x)=g(x)f(x) and we need to find the derivative of h at x=9, which is h′(9). To do this, we will use the quotient rule for derivatives, which states that if h(x)=g(x)f(x), then h′(x)=(g(x))2g(x)f′(x)−f(x)g′(x).
Applying the quotient rule: We are given f(9)=6, f′(9)=4, g(9)=2, and g′(9)=−3. Let's plug these values into the quotient rule formula to find h′(9).h′(9)=(g(9))2g(9)f′(9)−f(9)g′(9)h′(9)=(2)22⋅4−6⋅(−3)
Plugging in values: Now we perform the calculations:h'(9) = 48+18h'(9) = 426h'(9) = 6.5
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