8. Definite Integrals

Given the function $f\left(x\right)$ graphed below, where $f\left(x\right)$ is a straight line from $(0,0)$ to $(2,2)$, evaluate the definite integral ${\int }_0^{2}f\left(x\right)dx$.

Given the parametric equations $x={\sin }^2\left(t\right)$, $y=2\cos \left(t\right)$ for $0\le t\le \pi$, what is the area enclosed by the curve and the y-axis?

Evaluate the iterated integral: $\int \underset{0}{}\stackrel{2}{}\int \underset{0}{}\stackrel{y^2}{}{x}^{2}ydxdy$

Let $g\left(x\right)={\int }_0^{x}f\left(t\right)dt$, where $f$ is the function whose graph is shown. Which of the following statements is true about $g\left(x\right)$?

Calculate the double integral of $f(x,y)=x+y$ over the region $R$, where $R$ is the rectangle defined by $0\le x\le 2$ and $1\le y\le 3$.

Evaluate the surface integral ${\int }_S^{}(x^{2}z+y^{2}z) dS$, where $S$ is the hemisphere $x^2+y^2+z^2=4$, $z\ge 0$.

Evaluate the iterated integral: ${\int }_0^4{\int }_0^{y^2}{x}^{2}ydxdy$

Determine the area of the region bounded by $y=x+\sin x$, the x-axis, $x=0$, and $x=\pi$.

Given the parametric equations $x=t^2-3t$ and $y=t$ for $t\in [0,3]$, what is the area enclosed by the curve and the y-axis?

Which of the following definite integrals is equal to the area under the curve $y=x^2$ from $x=0$ to $x=2$?

11-14. {Use of Tech} Compute the absolute and relative errors in using c to approximate x.

12. x = √2; c = 1.414

Evaluate the definite integral ${\int }_0^{\pi }f\left(x\right)dx$, where $f\left(x\right)=\sin \left(x\right)$ for $0\le x<\frac{\pi }{2}$ and $f\left(x\right)=2\cos \left(x\right)$ for $\frac{\pi }{2}\le x\le \pi$.

Evaluate the double integral by reversing the order of integration: ${\int }_0^2{\int }_y^2(x+y) dx dy$.

Find the area under the curve $y=x^2$ from $x=1$ to $x=3$.

Which of the following definite integrals are equal to $0$?