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Quiz 2
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\(\int_{0}^{\pi^{2} / 4} \frac{\sin \sqrt{y}}{\sqrt{y}}\)
0%
1
0%
2
0%
\(\frac{π}{4}\)
0%
\(\frac{π^2}{8}\)
Explanation
2
\(\int_{0}^{\infty} \frac{1}{1+e^{x}}\) dx =
0%
log 2
0%
-log 2
0%
log 2 – 1
0%
log 4 – 1
Explanation
log 2
\(\int_{0}^{1}\) x(1 – x) is equal to
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\(\frac{1}{10010}\)
0%
\(\frac{1}{10100}\)
0%
\(\frac{1}{1010}\)
0%
\(\frac{11}{10100}\)
Explanation
\(\frac{1}{10100}\)
What is the value of \(\int_{0}^{1}\) \(\frac{d}{dx}\){sin(\(\frac{2x}{1+x^2}\))}dx?
0%
0
0%
π
0%
-π
0%
\(\frac{π}{2}\)
Explanation
\(\frac{π}{2}\)
\(\int_{0}^{1}\) \(\frac{x}{1+x}\) dx =
0%
1 – log 2
0%
2
0%
1 + log 2
0%
log 2
Explanation
1 – log 2
∫\(\frac{sin x + cos x}{\sqrt{1+2sin x}}\) dx =
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log(sin x – cos x)
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x
0%
log x
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log sin (cos x)
Explanation
x
∫log xdx =
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log 10.x log(\(\frac{x}{e}\)) + c
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log e.x log(\(\frac{x}{e}\)) + c
0%
(x – 1) log x + c
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\(\frac{1}{x}\) + c
Explanation
log e.x log(\(\frac{x}{e}\)) + c
∫(\(\frac{cos 2θ – 1}{cos 2θ + 1}\)) dθ =
0%
tan θ – θ + c
0%
θ + tan θ + c
0%
θ – tan θ + c
0%
-θ – cot θ + c
Explanation
θ – tan θ + c
∫\(\frac{2dx}{\sqrt{1-4x^2}}\) =
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tan (2x) + c
0%
cot (2x) + c
0%
cos(2x) + c
0%
sin(2x) + c
Explanation
sin (2x) + c
Value of ∫\(\frac{dx}{\sqrt{2x – x^2}}\)
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sin(x – 1) + c
0%
sin(1 + x) + c
0%
sin(1 + x²) + c
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–\(\sqrt{2x-x^2}\) + c
Explanation
sin(x – 1) + c
∫x² sin x³ dx =
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\(\frac{1}{3}\) cos x³ + c
0%
–\(\frac{1}{3}\) cos x + c
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\(\frac{-1}{3}\) cos x³ + c
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\(\frac{1}{2}\) sin² x³ + c
Explanation
\(\frac{-1}{3}\) cos x³ + c
∫\(\frac{cos 2x- cos 2θ}{cos x – cos θ}\)dx is equal to
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2 (sin x + x cos θ) + C
0%
2 (sin x – x cos θ) + C
0%
2 (sin x + 2x cos θ) + C
0%
2 (sin x – 2x cos θ) + C
Explanation
2 (sin x + x cos θ) + C
∫\(\frac{dx}{sin(x-a)sin(x-b)}\) is equal to
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sin(b – a) log |\(\frac{sin (x-b)}{sin(x-a)}\)| + C
0%
cosec (b – a) log |\(\frac{sin (x-b)}{sin(x-b)}\)| + C
0%
cosec (b – a) log |\(\frac{sin (x-b)}{sin(x-a)}\)| + C
0%
sin (b – a) log |\(\frac{sin (x-a)}{sin(x-b)}\)| + C
Explanation
cosec (b – a) log |\(\frac{sin (x-b)}{sin(x-a)}\)| + C
∫tan √xdx is equal to
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(x + 1)tan √x – √x + C
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x tan √x – √x + C
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√x – x tan √x + C
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√x – (x + 1)tan √x + C
Explanation
(x + 1)tan √x – √x + C
∫e(\(\frac{1-x}{1+x^2}\))² dx is equal to
0%
\(\frac{e^x}{1+x^2}\) + C
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–\(\frac{-e^x}{1+x^2}\) + C
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\(\frac{e^x}{(1+x^2)^2}\) + C
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\(\frac{-e^x}{(1+x^2)^2}\) + C
Explanation
\(\frac{e^x}{1+x^2}\) + C
If ∫\(\frac{dx}{(x+2)(x^2+1)}\) = a log |1 + x²| + b tan x + \(\frac{1}{5}\) log |x + 2| + C, then
0%
a = \(\frac{-1}{10}\), b = \(\frac{-2}{5}\)
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a = \(\frac{1}{10}\), b = \(\frac{-2}{5}\)
0%
a = \(\frac{-1}{10}\), b = \(\frac{2}{5}\)
0%
a = \(\frac{1}{10}\), b = \(\frac{2}{5}\)
Explanation
a = \(\frac{-1}{10}\), b = \(\frac{2}{5}\)
∫ \(\frac{x^3}{x+1}\) is equal to
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x + \(\frac{x^2}{2}\) + \(\frac{x^3}{3}\) – log |1 – x| + C
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x + \(\frac{x^2}{2}\) – \(\frac{x^3}{3}\) – log |1 – x| + C
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x + \(\frac{x^2}{2}\) – \(\frac{x^3}{3}\) – log |1 + x| + C
0%
x + \(\frac{x^2}{2}\) + \(\frac{x^3}{3}\) – log |1 + x| + C
Explanation
x + \(\frac{x^2}{2}\) + \(\frac{x^3}{3}\) – log |1 + x| + C
If ∫\(\frac{x^3dx}{\sqrt{1+x^2}}\) = a(1 + x²)+ b\(\sqrt{1 + x^2}\) + C, then
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a = \(\frac{1}{3}\), b = 1
0%
a = \(\frac{-1}{3}\), b = 1
0%
a = \(\frac{-1}{3}\), b = -1
0%
a = \(\frac{1}{3}\), b = -1
Explanation
a = \(\frac{1}{3}\), b = -1
\(\int_{-\pi / 4}^{\pi / 4}\) \(\frac{dx}{1+cos 2x}\) dx is equal to
0%
1
0%
2
0%
3
0%
4
Explanation
1
\(\int_{0}^{\pi / 2}\) \(\sqrt{1+sin 2x}\) dx is equal to
0%
2√2
0%
2(√2 + 1)
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0
0%
2(√2 – 1)
Explanation
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