Exam 4: Integrals

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Find the maximum and minimum points of the function. F(x)=(1−x2)5+6x6F(x)=\left(1-x^{2}\right)^{5}+6 x^{6}

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Find the critical number(s), if any, of the function h(u)=7uu2+36h(u)=\frac{7 u}{u^{2}+36} .

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Find the value of the limit. lim⁡x→03tan⁡5x−5xx3\lim _{x \rightarrow 0} 3 \frac{\tan 5 x-5 x}{x^{3}}

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Sketch the graph of the function f(x)=x3−3xf(x)=x^{3}-3 x using the curve-sketching guidelines.

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The function f(x)=x2+10x+27f(x)=x^{2}+10 x+27 satisfies the hypotheses of Rolle's Theorem on the interval [−10,0][-10,0] . Find all values of c that satisfy the conclusion of the theorem.

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Evaluate the limit. lim⁡x→∞(x−x2+2)\lim _{x \rightarrow \infty}\left(x-\sqrt{x^{2}+2}\right)

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An efficiency study showed that the total number of cell phones assembled by the average worker at a manufacturing company t hours after starting work at 8 a.m. is given by N(t)=−0.5t3+3t2+7t,0≤t≤4N(t)=-0.5 t^{3}+3 t^{2}+7 t, \quad 0 \leq t \leq 4 Sketch the graph of the function N, and interpret your result.

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Sketch the curve. Find the equation of the slant asymptote. y=x2x−1y=\frac{x^{2}}{x-1}

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Find the most general antiderivative of the function. f(x)=5cos⁡x−7sin⁡xf(x)=5 \cos x-7 \sin x

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The graph of the derivative f′(x)f^{\prime}(x) of a continuous function f is shown. On what intervals is f decreasing?  The graph of the derivative  f^{\prime}(x)  of a continuous function f is shown. On what intervals is f decreasing?   . .

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A rectangular beam will be cut from a cylindrical log of radius r=40r=40 inches. Suppose that the strength of a rectangular beam is proportional to the product of its width and the square of its depth. Find the dimensions of the strongest beam that can be cut from the cylindrical log.  A rectangular beam will be cut from a cylindrical log of radius  r=40  inches. Suppose that the strength of a rectangular beam is proportional to the product of its width and the square of its depth. Find the dimensions of the strongest beam that can be cut from the cylindrical log.

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Find all the maximum and minimum values of the function. F(x)=x−5(x−4)2F(x)=\frac{x-5}{(x-4)^{2}}

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Find the critical numbers of f(x)=x4(x−2)3f(x)=x^{4}(x-2)^{3} .

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Evaluate the limit. lim⁡x→5+(xx−5−5ln⁡x)\lim _{x \rightarrow 5^{+}}\left(\frac{x}{x-5}-\frac{5}{\ln x}\right)

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Find the critical number(s), if any, of the function f(x)=x3−6x−4f(x)=x^{3}-6 x-4

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A manufacturer has been selling 1,200 television sets a week at $400 each. A market survey indicates that for each $30 rebate offered to the buyer, the number of sets sold will increase by 60 per week. Find the demand function.

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Find the limit. lim⁡t→04t−3tt\lim _{t \rightarrow 0} \frac{4^{t}-3^{t}}{t}

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Sketch the curve. y=3x3+3xy=3 x^{3}+3 x

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An apple orchard has an average yield of 32 bushels of apples per tree if tree density is 30 trees per acre. For each unit increase in tree density, the yield decreases by 2 bushels per tree. How many trees per acre should be planted to maximize yield?

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Estimate the value of 113\sqrt[3]{11} by using three iterations of Newton's method to solve the equation x3−11=0x^{3}-11=0 with initial estimate x0=2. x_{0}=2 \text {. } Round your final estimate to four decimal places.

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