Exam 12: Integration and Its Applications

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Find the indefinite integral. e4ydy\int e ^ { - 4 y } d y

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Find the area of the shaded region. Find the area of the shaded region.

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The integrand of the following definite integral is a difference of two functions. 04[(x+1)12x]dx\int _ { 0 } ^ { 4 } \left[ ( x + 1 ) - \frac { 1 } { 2 } x \right] d x Sketch the graph of the two functions and shade the region whose area is represented by the integral.

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Find the indefinite integral of the following function and check the result by differentiation. 3t2t3+3dt\int \frac { 3 t ^ { 2 } } { \sqrt { t ^ { 3 } + 3 } } d t

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The rate of depreciation of a building is given by D(t)=8,300(20t)D ^ { \prime } ( t ) = 8,300 ( 20 - t ) dollars per year, 0t200 \leq t \leq 20 Use the definite integral to find the total depreciation over the first 2020 years.

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Evaluate the integral (4x5+3)8x4dx\int \left( 4 x ^ { 5 } + 3 \right) ^ { 8 } x ^ { 4 } d x

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Evaluate the integral e23xdx\int e ^ { 23 x } d x

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Find the indefinite integral of the following function and check the result by differentiation. (1+4z)3dz\int ( 1 + 4 z ) ^ { 3 } d z

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Find the indefinite integral. (lnx)4xdx\int \frac { ( \ln x ) ^ { 4 } } { x } d x

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Find the indefinite integral of the following function and check the result by differentiation. u2(5+u3)3du\int u ^ { 2 } \left( 5 + u ^ { 3 } \right) ^ { 3 } d u

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Find the consumer and producer surpluses by using the demand and supply functions, where p is the price (in dollars) and x is the number of units (in millions). Demand Function                 ~~~~~~~~~~~~~~~~ Supply Function P=97523x           42xP = 975 - 23 x ~~~~~~~~~~~\quad 42 x

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Use formal substitution to find the indefinite integral x4+1x5+5x+6dx\int \frac { x ^ { 4 } + 1 } { \sqrt { x ^ { 5 } + 5 x + 6 } } d x .

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Find the particular solution that satisfies the differential equation f(x)=12x5f ^ { \prime } ( x ) = \frac { 1 } { 2 } x - 5 and initial condition f(4)=16f ( 4 ) = - 16 .

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Use the Midpoint Rule with n=4n = 4 to approximate the area of the region bounded by the graph of and the -axis over the interval. Sketch the region. f(x)=(x24)2,[2,2]f ( x ) = \left( x ^ { 2 } - 4 \right) ^ { 2 } , [ - 2,2 ]

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The marginal cost of a product is modeled by dCdx=8x+1\frac { d C } { d x } = \frac { 8 } { \sqrt { x + 1 } } , when x = 8, C = 40. Find the cost function.

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Find a function that satisfies the conditions f(x)=x5,f(0)=9,f(0)=5f ^ { \prime \prime } ( x ) = x ^ { 5 } , f ^ { \prime } ( 0 ) = 9 , f ( 0 ) = 5 .

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Find the indefinite integral. x23x3+10dx\int \frac { x ^ { 2 } } { 3 x ^ { 3 } + 10 } d x

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Evaluate the definite integral 47(x7)5dx\int _ { 4 } ^ { 7 } ( x - 7 ) ^ { 5 } d x .

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Evaluate the integral x7e7x8dx\int x ^ { 7 } e ^ { 7 x ^ { 8 } } d x

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Find the average value of the function over the given interval. f(x)=9x2f ( x ) = 9 - x ^ { 2 } on [-3,3]

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