Exam 4: Definite Integrals

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Use geometry to find the exact value of 0(3x)dx\int _ { 0 } ( 3 - x ) d x

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Use geometry to find the exact value of 224x2dx\int _ { - 2 } ^ { 2 } \sqrt { 4 - x ^ { 2 } } d x

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D

Evaluate 0π/2(2sinx3cosx)dx\int _ { 0 } ^ { \pi / 2 } ( 2 \sin x - 3 \cos x ) d x

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Find the exact average value of f(x)=2exf ( x ) = 2 e ^ { x } from x = -1 to x = 3.

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Find (x2+2)2x5dx\int \frac { \left( x ^ { 2 } + 2 \right) ^ { 2 } } { x ^ { 5 } } d x

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Write the following sum in sigma notation. 2+34+49+516+625+736+8492 + \frac { 3 } { 4 } + \frac { 4 } { 9 } + \frac { 5 } { 16 } + \frac { 6 } { 25 } + \frac { 7 } { 36 } + \frac { 8 } { 49 }

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Given f(x)=1exf ( x ) = 1 - e ^ { x } over the interval [-1, 2], find: (a) the signed area, (b) the absolute area, between the graph of f and the x-axis from x = -1 to x = 2.

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Evaluate 15(3x)dx\int _ { 1 } 5 \left( 3 ^ { x } \right) d x

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Approximate the area between the graph of f(x)=(x2)2+1f ( x ) = ( x - 2 ) ^ { 2 } + 1 and the x-axis on the interval [1, 5], using a right sum with (a) n = 2, (b) n = 4.

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Given f(x)=x2+x6f ( x ) = x ^ { 2 } + x - 6 over the interval [-3, 4], find: (a) the signed area, (b) the absolute area, between the graph of f and the x-axis from x = -3 to x = 4.

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Evaluate 12ex+3dx\int _ { 1 } 2 e ^ { x + 3 } d x

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Approximate the area between the graph of f(x)=x2+4xf ( x ) = x ^ { 2 } + 4 x and the x-axis on the interval [2, 4], using a right sum with (a) n = 4, (b) n = 6.

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Evaluate 01/211x2dx\int _ { 0 } ^ { 1 / 2 } \frac { 1 } { \sqrt { 1 - x ^ { 2 } } } d x

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Evaluate 1e3x1dx\int _ { - 1 } \left| e ^ { 3 x } - 1 \right| d x

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Given f(x)=(x+1)22f ( x ) = ( x + 1 ) ^ { 2 } - 2 , find a number c on the interval (-3, 0) such that f(c) is the average value of f on [-3, 0].

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Find d2dx21xcost2tdt\frac { d ^ { 2 } } { d x ^ { 2 } } \int _ { 1 } ^ { x } \frac { \cos t } { 2 t } d t

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Approximate the area between the graph of f(x)=9x2f ( x ) = 9 - x ^ { 2 } and the x-axis on the interval [0, 3], for n = 6, using (a) left sums (b) right sums.

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Use definite integrals and Fundamental Theorem of Calculus to find the exact area of the region between the graphs of f(x)=sinxf ( x ) = \sin x and g(x)=cosxg ( x ) = \cos x from x = 0 to x = π\pi /2.

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Find the exact average value of f(x)=9x2f ( x ) = 9 - x ^ { 2 } from x = -3 to x = 3.

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Find ddx2tanx3t3dt\frac { d } { d x } \int _ { 2 } ^ { \tan x } 3 t ^ { 3 } d t

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