Find the arclength of the curve \(y = \ln(\sin(x))\) on the interval \([\dfrac{\pi}{4}, \dfrac{\pi}{2}]\).
A
\(\ln\left(\dfrac{\sqrt{2}}{2} + 1\right)\)
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B
\(\ln(1 + \sqrt{2})\)
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C
\(\sqrt{2}\)
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D
\(\ln(1 + \sqrt{2}) - 1\)
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E
\(1 - \ln(1 + \sqrt{2})\)
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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
\(4\)
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B
\(1\)
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C
\(\dfrac{1}{2}\)
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D
\(2\)
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E
None of the above
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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
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B
a line with slope \(1\)
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C
a line with slope \(2\)
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D
a parabola
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E
a semi-circle
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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
\(-1 < x < 1\)
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B
\(-1 \leq x \leq 1\)
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C
\(-1 \leq x < 1\)
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D
\(-1 < x \leq 1\)
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E
\(x = 0\)
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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
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B
if \(-2 < x \leq 0\)
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C
if \(x < -2\) or \(x > 0\)
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D
if \(-2 \leq x < 0\)
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E
if \(x \neq -1\)
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Question 14 of 20
| MCQ
· Level 3
The series \(\displaystyle\sum_{n=0}^{\infty} n! (x - 3)^n\) converges if and only if
A
\(x = 0\)
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B
\(2 < x < 4\)
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C
\(x = 3\)
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D
\(2 \leq x \leq 4\)
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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
\(1 \leq x \leq 3\)
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B
\(1 \leq x < 3\)
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C
\(1 < x \leq 3\)
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D
\(0 \leq x \leq 4\)
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E
None of the above.
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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
\(\dfrac{-1}{24}\)
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B
\(\dfrac{1}{24}\)
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C
\(\dfrac{1}{96}\)
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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