Recent questions tagged integration

7 7 votes
1 1 answer
515
515 views
Find $\dfrac{dy}{dx}$ where $$y=\int_{x^2}^{\sin x}\sqrt{1+t^4}dt$$$\cos x\sqrt{1+\sin^4x}-2x\sqrt{1+x^8}$ $\cos x\sqrt{1+\sin^4x}+2x\sqrt{1+x^8}$ $\sqrt{1+\sin^4x}-\sqrt...
4 4 votes
1 1 answer
360
360 views
3 3 votes
1 1 answer
301
301 views
Find the area of the region bounded by the lines $x=-1$, $x=2$, $y=0$, and the curve $y=x^3-x^2-2x$.$\frac{5}{12}$ $\frac{8}{3}$ $\frac{37}{12}$ $\frac{11}{4}$
1 1 vote
1 1 answer
293
293 views
The volume of the solid generated by revolving the region bounded by the curves $y=x^2$ and $y=x+2$ about the $x$-axis is:$\frac{72}{5}$ $\frac{72\pi}{5}$ $\frac{36\pi}{5...
0 0 votes
1 1 answer
209
209 views
0 0 votes
1 1 answer
213
213 views
Let $f(x)=\left|x-\lfloor x\rfloor-\frac{1}{2}\right|$, where $\lfloor x\rfloor$ denotes the greatest integer less than or equal to $x$. The value of $\int_{0.2}^{2.75} f...
1 1 vote
1 1 answer
181
181 views
Let $f:[0,1]\to\mathbb{R}$ be continuous and satisfy $f(x)=x^2+\int_0^1 (x+t)f(t)dt$ for every $x\in[0,1]$. Which of the following is $f(x)$?$x^2-5x-\frac{17}{6}$ $x^2+5x...
0 0 votes
1 1 answer
122
122 views
Let $f$ be a continuous function defined for all real numbers. Suppose :$$\int_0^3 f(x)dx=4, \qquad\int_0^6 f(x)dx=9, \qquad\int_6^{10} f(x)dx=-2, \qquad \text{and} \qqua...
0 0 votes
2 2 answers
136
136 views
Evaluate the definite integral:$$I=\int_0^\pi x\sin x\ln(1+\cos^2 x),dx$$Which of the following is the correct value?$\frac{\pi^2}{2}+\pi\ln 2-2\pi$ $\frac{\pi^2}{4}+\pi\...
3 3 votes
1 1 answer
154
154 views
The value of the given integral is : $$I=\int_0^{\pi/2}\left(\frac{4\sqrt{\sin x}+7\sqrt{\cos x}}{\sqrt{\sin x}+\sqrt{\cos x}}+\sin x\cos x\right)dx$$$\frac{11\pi}{4}+\fr...
2 2 votes
2 2 answers
486
486 views
1 1 vote
3 3 answers
505
505 views
Evaluate the integral:$$\int_0^{\frac{\pi}{2}} \frac{\tan ^7 x}{\cot ^7 x+\tan ^7 x} d x$$$\frac{\pi}{4}$ $\frac{\pi}{2}$ $\frac{1}{2}$ $\frac{\pi}{8}$
1 1 vote
0 0 answers
206
206 views
Let $C([0,1], \mathbb{R})$ be the set of continuous functions from $[0,1]$ to $\mathbb{R}$, equipped with the metric $d$ given by\[d\left(f_{1}, f_{2}\right)=\sup _{x \in...
0 0 votes
2 2 answers
467
467 views
If $g^{\prime}(x)=f(x)$ then $\int x^{3} f\left(x^{2}\right) d x$ is given by$x^{2} g\left(x^{2}\right)-\int x g\left(x^{2}\right) d x+C$$\frac{1}{2} x^{2} g\left(x^{2}\r...