Exam 5: Integrals

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Find the value of the integral ∫01/2sin⁡−1x1−x2dx\int _ { 0 } ^ { 1 / 2 } \frac { \sin ^ { - 1 } x } { \sqrt { 1 - x ^ { 2 } } } d x

(Multiple Choice)
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Evaluate the following integrals: (a) ∫u+u3udu\int \frac { \sqrt { u } + \sqrt [ 3 ] { u } } { u } d u (b) ∫−21∣2x+1∣dx\int _ { - 2 } ^ { 1 } | 2 x + 1 | d x (c) ∫01t3+13⋅t5dt\int _ { 0 } ^ { 1 } \sqrt [ 3 ] { t ^ { 3 } + 1 } \cdot t ^ { 5 } d t (d) ∫−4416−x2dx\int _ { - 4 } ^ { 4 } \sqrt { 16 - x ^ { 2 } } d x

(Essay)
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Find the value of the integral ∫−3319+s2ds\int _ { - 3 } ^ { 3 } \frac { 1 } { 9 + s ^ { 2 } } d s

(Multiple Choice)
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Find the value of the integral ∫01exex+1dx\int _ { 0 } ^ { 1 } \frac { e ^ { x } } { e ^ { x } + 1 } d x

(Multiple Choice)
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Evaluate the following integrals: (a) ∫0x/2sin⁡xcos⁡2xdx\int _ { 0 } ^ { x / 2 } \sin x \cos ^ { 2 } x d x (b) ∫0x/2cos⁡x1−sin⁡xdx\int _ { 0 } ^ { x / 2 } \frac { \cos x } { \sqrt { 1 - \sin x } } d x (c) ∫−44sin⁡x⋅16−x24+x2dx\int _ { - 4 } ^ { 4 } \frac { \sin x \cdot \sqrt { 16 - x ^ { 2 } } } { 4 + x ^ { 2 } } d x (d) ∫−22(x3+24−x2)dx\int _ { - 2 } ^ { 2 } \left( x ^ { 3 } + 2 \sqrt { 4 - x ^ { 2 } } \right) d x

(Essay)
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If p(x)p ( x ) is measured in grams per centimeter and x is measured in centimeters, what does ∫abp(x)dx\int _ { a } ^ { b } p ( x ) d x represent?

(Essay)
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Evaluate the following integrals: (a) ∫(2+1t)(2−1t)dt\int \left( 2 + \frac { 1 } { \sqrt { t } } \right) \left( 2 - \frac { 1 } { \sqrt { t } } \right) d t (b) ∫01/211−t2dt\int _ { 0 } ^ { 1 / 2 } \frac { 1 } { \sqrt { 1 - t ^ { 2 } } } d t (c) ∫03∣2−x∣dx\int _ { 0 } ^ { 3 } | 2 - x | d x (d) ∫ln⁡2m3⁡e2xdx\int _ { \ln 2 } ^ { \operatorname { m3 } } e ^ { 2 x } d x

(Essay)
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Use Definition 2 to show that the area under the curve y=3−x2,0≤x≤2 is 5y = 3 - \frac { x } { 2 } , 0 \leq x \leq 2 \text { is } 5

(Short Answer)
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Find the value of the integral ∫01arcsin⁡tdt\int _ { 0 } ^ { 1 } \arcsin t d t

(Multiple Choice)
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(a) If f(x)f ( x ) is measured in pounds and x is measured in feet, what are the units of measurement for ∫abf(x)dx?\int _ { a } ^ { b } f ( x ) d x ? (b) Give a physical interpretation of f (x) and ∫abf(x)dx\int _ { a } ^ { b } f ( x ) d x

(Essay)
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A scientist collects the following data and plots it in the coordinate plane. x 2 2.5 3 3.5 4 4.5 5 y 4 10 8 6 14 10 12 (a) Use Simpson's rule with n = 6 to estimate the area under the graph of a continuous function drawn through these points.(b) If it is known that −4≤f(4)(x)≤1- 4 \leq f ^ { ( 4 ) } ( x ) \leq 1 for all x, estimate the error involved in the approximation in part (a).(c) How large do we have to choose n so that the approximation SnS _ { n } (Simpson's Rule) to the integral is accurate to within 0.001?

(Essay)
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Use right endpoints with n = 4 to approximate ∫12ln⁡2xdx\int _ { 1 } ^ { 2 } \ln 2 x d x .

(Essay)
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Find the value of the integral ∫01(x3+1)5x2dx\int _ { 0 } ^ { 1 } \left( x ^ { 3 } + 1 \right) ^ { 5 } x ^ { 2 } d x

(Multiple Choice)
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The graph of a function f is given below. Estimate ∫08f(x)dx\int _ { 0 } ^ { 8 } f ( x ) d x using 4 subintervals with sample points:  The graph of a function f is given below. Estimate  \int _ { 0 } ^ { 8 } f ( x ) d x  using 4 subintervals with sample points:   (a) right endpoints.(b) left endpoints.(c) midpoints. (a) right endpoints.(b) left endpoints.(c) midpoints.

(Essay)
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Express lim⁡n→∞{∑i=1n[2+(3in)2]3n}\lim _ { n \rightarrow \infty } \left\{ \sum _ { i = 1 } ^ { n } \left[ 2 + \left( \frac { 3 i } { n } \right) ^ { 2 } \right] \frac { 3 } { n } \right\} as a definite integral.

(Essay)
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Evaluate the improper integral ∫1∞x−2dx\int _ { 1 } ^ { \infty } x ^ { - 2 } d x

(Multiple Choice)
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Evaluate ∫1x2−4dx\int \frac { 1 } { x ^ { 2 } - 4 } d x

(Multiple Choice)
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Find the value of the integral ∫0x/12sin⁡2udu\int _ { 0 } ^ { x / 12 } \sin ^ { 2 } u d u

(Multiple Choice)
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Evaluate the integral ∫cos⁡xdx\int \cos \sqrt { x } d x

(Multiple Choice)
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Use the Midpoint Rule with n = 4 to approximate the integral ∫−222xdx\int _ { - 2 } ^ { 2 } 2 ^ { x } d x

(Multiple Choice)
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