Question 28 of 34
| Integration and Accumulation of Change
· Level 3
\(\int x^2 \sin x d x =\)
A
\(-x^2 \cos x - 2 x \sin x - 2 \cos x + C\)
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B
\(-x^2 \cos x + 2 x \sin x - 2 \cos x + C\)
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C
\(-x^2 \cos x + 2 x \sin x + 2 \cos x + C\)
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D
\(-x^3/3 \cos x + C\)
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E
\(2 x \cos x + C\)
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Question 29 of 34
| Integration and Accumulation of Change
· Level 3
[Calc] \(f\) twice diff, \(f(1) = 2\), \(f(3) = 7\). Which true on \([1,3]\)? I. avg rate \(= \dfrac{5}{2}\) II. avg value of \(f\) is \(\dfrac{9}{2}\) III. avg of \(f'\) is \(\dfrac{5}{2}\)
A
None
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B
I only
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C
III only
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D
I and III only
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E
II and III only
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Question 30 of 34
| Integration and Accumulation of Change
· Level 2
Question 31 of 34
| Applications of Integration
· Level 3
Base of solid: \(y = 2 - x^2\) in Q1 with axes. Cross-sections perp to y-axis are squares. Volume?
A
\(\pi \displaystyle\int_{0}^{2} (2 - y)^2 d y\)
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B
\(\displaystyle\int_{0}^{2} (2 - y) d y\)
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C
\(\pi \displaystyle\int_{0}^{\sqrt{2}} (2 - x^2)^2 d x\)
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D
\(\displaystyle\int_{0}^{\sqrt{2}} (2 - x^2)^2 d x\)
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E
\(\displaystyle\int_{0}^{\sqrt{2}} (2 - x^2) d x\)
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Question 32 of 34
| Integration and Accumulation of Change
· Level 3
[Calc] \(f(x) = \displaystyle\int_{0}^{x^2} \sin t d t\). How many points in \([0, \sqrt{\pi}]\) where instantaneous rate equals avg rate?
A
Zero
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B
One
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C
Two
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D
Three
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E
Four
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Question 33 of 34
| Integration and Accumulation of Change
· Level 3
[Calc] \(f\) antiderivative of \(x^2/(1+x^5)\), \(f(1) = 0\). \(f(4) =\)
A
\(-0.012\)
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B
\(0\)
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C
\(0.016\)
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D
\(0.376\)
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E
\(0.629\)
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Question 34 of 34
| Applications of Integration
· Level 2
[Calc] Spring: 10 lb stretches 4 inches. Work to stretch 6 inches?
A
\(60\)
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B
\(45\)
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C
\(40\)
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D
\(15\)
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E
\(7.2\)
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Graphing Calculator
Reference Sheet
Area & Circumference
Circle$A = \pi r^2$, $C = 2\pi r$
Rectangle$A = lw$
Triangle$A = \tfrac{1}{2}bh$
Trapezoid$A = \tfrac{1}{2}(b_1+b_2)h$
Volume
Box$V = lwh$
Cylinder$V = \pi r^2 h$
Sphere$V = \tfrac{4}{3}\pi r^3$
Cone$V = \tfrac{1}{3}\pi r^2 h$
Pyramid$V = \tfrac{1}{3}lwh$
Triangles
Pythagorean Thm$a^2 + b^2 = c^2$
30-60-90sides: $1,\, \sqrt{3},\, 2$
45-45-90sides: $1,\, 1,\, \sqrt{2}$
Triangle Anglessum $= 180°$
Other Facts
Circle Degrees$360° = 2\pi \text{ rad}$
Exterior Angle= sum of non-adjacent interior angles
The number of degrees of arc in a circle is 360. The number of radians of arc in a circle is $2\pi$.
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