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ilearnmathnet BC MCQ Set 20 0/20
Question 1 of 20   |  MCQ  · Level 2
The third-degree Taylor polynomial about \(x = 0\) of \(\ln(1 - x)\) is:
A
\(-x - \dfrac{x^2}{2} - \dfrac{x^3}{3}\)
B
\(1 - x + \dfrac{x^2}{2}\)
C
\(x - \dfrac{x^2}{2} + \dfrac{x^3}{3}\)
D
\(-1 + x - \dfrac{x^2}{2}\)
E
\(-x + \dfrac{x^2}{2} - \dfrac{x^3}{3}\)
Question 2 of 20   |  MCQ  · Level 2
\(\displaystyle\int_{0}^{\infty} e^{-2 t} d t\) is
A
\(-1\)
B
\(-0.5\)
C
\(0.5\)
D
\(1\)
E
divergent
Question 3 of 20   |  MCQ  · Level 3
The area of one loop of the graph of the polar equation \(r = 2 \sin(3 \theta)\) is given by which of the following?
A
\(4 \displaystyle\int_{0}^{\dfrac{\pi}{3}} \sin^2(3 \theta) d \theta\)
B
\(2 \displaystyle\int_{0}^{\dfrac{\pi}{3}} \sin(3 \theta) d \theta\)
C
\(2 \displaystyle\int_{0}^{\dfrac{\pi}{3}} \sin^2(3 \theta) d \theta\)
D
\(2 \displaystyle\int_{0}^{2 \dfrac{\pi}{3}} \sin^2(3 \theta) d \theta\)
E
\(2 \displaystyle\int_{0}^{2 \dfrac{\pi}{3}} \sin(3 \theta) d \theta\)
Question 4 of 20   |  MCQ  · Level 2
\(\operatorname*{lim}\limits_{x \rightarrow 0} \dfrac{e^{3 x} - 1}{\tan x} =\)
A
\(-1\)
B
\(0\)
C
\(1\)
D
\(3\)
E
DNE
Question 5 of 20   |  MCQ  · Level 2
Identify the false statement.
A
\(\dfrac{d \sinh(x)}{d x} = \cosh(x)\)
B
\(\dfrac{d \cosh(x)}{d x} = \sinh(x)\)
C
\(\displaystyle\int_{a}^{t} sech^2(x) d x = \tanh(t) - \tanh(a)\)
D
\(\cosh^2(x) - \sinh^2(x) = 1\)
E
All four statements are true.
Question 6 of 20   |  MCQ  · Level 3
Evaluate \(\displaystyle\int_{0}^{6} \sqrt{6 x - x^2} d x\)
A
\(\pi\)
B
\(2 \pi\)
C
\(\dfrac{5 \pi}{2}\)
D
\(\dfrac{9 \pi}{2}\)
E
\(3 \pi\)
Question 7 of 20   |  MCQ  · Level 3
\(\int \ln(x) x^4 d x =\)
A
\(\dfrac{x^5 \ln(x)}{5} + \dfrac{x^6}{30} + C\)
B
\(\dfrac{x^5 \ln(x)}{5} + \dfrac{x^5}{25} + C\)
C
\(\dfrac{x^5}{5} \dfrac{1}{x} + C\)
D
\(\dfrac{(\ln(x))^2 x^5}{7} + C\)
E
\(\dfrac{x^5 \ln(x)}{5} - \dfrac{x^5}{25} + C\)
Question 8 of 20   |  MCQ  · Level 4
Find \(\int e^{m x} \cos(n x) d x\)
A
\(e^{m x} \dfrac{m \cos(n x) - n \sin(n x)}{m^2 + n^2} + C\)
B
\(e^{m x} \dfrac{\cos(n x) - \sin(n x)}{m^2 + n^2} + C\)
C
\(e^{m x} \dfrac{n \sin(n x) + m \cos(n x)}{m^2 + n^2} + C\)
D
\(\dfrac{-e^{m x} \cos(n x)}{n} + C\)
E
None of the above.
Question 9 of 20   |  MCQ  · Level 4
Find the arclength of the curve \(y = \ln(\sin(x))\) on the interval \([\dfrac{\pi}{4}, \dfrac{\pi}{2}]\).
A
\(\ln\left(\dfrac{\sqrt{2}}{2} + 1\right)\)
B
\(\ln(1 + \sqrt{2})\)
C
\(\sqrt{2}\)
D
\(\ln(1 + \sqrt{2}) - 1\)
E
\(1 - \ln(1 + \sqrt{2})\)
Question 10 of 20   |  MCQ  · Level 3
The area bounded by the lemniscate with polar equation \(r^2 = 2 \cos(2 \theta)\) is equal to
A
\(4\)
B
\(1\)
C
\(\dfrac{1}{2}\)
D
\(2\)
E
None of the above
Question 11 of 20   |  MCQ  · Level 2
The graph of the polar equation \(r = \dfrac{1}{\sin \theta - 2 \cos \theta}\) is:
A
a circle
B
a line with slope \(1\)
C
a line with slope \(2\)
D
a parabola
E
a semi-circle
Question 12 of 20   |  MCQ  · Level 3
The power series \(x + \dfrac{x^2}{2} + \dfrac{x^3}{3} + ... + \dfrac{x^n}{n} + ...\) converges if and only if:
A
\(-1 < x < 1\)
B
\(-1 \leq x \leq 1\)
C
\(-1 \leq x < 1\)
D
\(-1 < x \leq 1\)
E
\(x = 0\)
Question 13 of 20   |  MCQ  · Level 4
The power series \((x + 1) - \dfrac{(x + 1)^2}{2!} + \dfrac{(x + 1)^3}{3!} - \dfrac{(x + 1)^4}{4!} + ...\) diverges:
A
for no real \(x\) values
B
if \(-2 < x \leq 0\)
C
if \(x < -2\) or \(x > 0\)
D
if \(-2 \leq x < 0\)
E
if \(x \neq -1\)
Question 14 of 20   |  MCQ  · Level 3
The series \(\displaystyle\sum_{n=0}^{\infty} n! (x - 3)^n\) converges if and only if
A
\(x = 0\)
B
\(2 < x < 4\)
C
\(x = 3\)
D
\(2 \leq x \leq 4\)
E
\(x < 2\) or \(x > 4\)
Question 15 of 20   |  MCQ  · Level 4
The interval of convergence of the series obtained through term by term differentiation of the series \((x - 2) - \dfrac{(x - 2)^2}{4} + \dfrac{(x - 2)^3}{9} - \dfrac{(x - 2)^4}{16} + ...\) is:
A
\(1 \leq x \leq 3\)
B
\(1 \leq x < 3\)
C
\(1 < x \leq 3\)
D
\(0 \leq x \leq 4\)
E
None of the above.
Question 16 of 20   |  MCQ  · Level 3
The coefficient of \(x^4\) in the Maclaurin series for \(f(x) = e^{-\dfrac{x}{2}}\) is:
A
\(\dfrac{-1}{24}\)
B
\(\dfrac{1}{24}\)
C
\(\dfrac{1}{96}\)
D
\(\dfrac{-1}{384}\)
E
\(\dfrac{1}{384}\)
Question 17 of 20   |  MCQ  · Level 3
The Maclaurin polynomial of order 3 for \(f(x) = \sqrt{1 + x}\) is
A
\(1 + \dfrac{x}{2} - \dfrac{x^2}{4} + \dfrac{3 x^2}{8}\)
B
\(1 + \dfrac{x}{2} - \dfrac{x^2}{8} + \dfrac{x^3}{16}\)
C
\(1 - \dfrac{x}{2} + \dfrac{x^2}{8} - \dfrac{x^3}{16}\)
D
\(1 + \dfrac{x}{2} - \dfrac{x^2}{8} + \dfrac{x^3}{8}\)
E
\(1 - \dfrac{x}{2} + \dfrac{x^2}{4} - \dfrac{3 x^3}{8}\)
Question 18 of 20   |  MCQ  · Level 3
The Taylor polynomial of order 3 at \(x = 1\) for \(e^x\) is:
A
\(1 + (x - 1) + \dfrac{(x - 1)^2}{2} + \dfrac{(x - 1)^3}{3}\)
B
\(e[1 + (x - 1) + \dfrac{(x - 1)^2}{2} + \dfrac{(x - 1)^3}{3}]\)
C
\(e[1 + (x + 1) + \dfrac{(x + 1)^2}{2} + \dfrac{(x - 1)^3}{3!}]\)
D
\(e[1 + (x - 1) + \dfrac{(x - 1)^2}{2!} + \dfrac{(x - 1)^3}{3!}]\)
E
\(e[1 - (x - 1) + \dfrac{(x - 1)^2}{2!} - \dfrac{(x - 1)^3}{3!}]\)
Question 19 of 20   |  MCQ  · Level 4
The coefficient of \(\left(x - \dfrac{\pi}{4}\right)^3\) in the Taylor series about \(\dfrac{\pi}{4}\) of \(f(x) = \cos x\) is
A
\(\dfrac{\sqrt{3}}{12}\)
B
\(\dfrac{-1}{12}\)
C
\(\dfrac{1}{12}\)
D
\(\dfrac{1}{6 \sqrt{2}}\)
E
\(\dfrac{-1}{3 \sqrt{2}}\)
Question 20 of 20   |  MCQ  · Level 4
The radius of convergence of the series \(\displaystyle\sum_{n=1}^{\infty} \dfrac{x^n \cdot n^n}{2^n \cdot n!}\) is:
A
\(0\)
B
\(2\)
C
\(\dfrac{2}{e}\)
D
\(\dfrac{e}{2}\)
E
\(\infty\)

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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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