Multiple Integrals

 $\int_0^2\int_0^2dxdy$   is ___________

• 1

• 2

• 3

• 4

 $\int_0^2\int_0^2xdxdy$ is ___________

• 1

• 2

• 3

• 4

 $\int_0^{\pi/2}\int_0^1\cos ydxdy$  

  is ___________

• 1

• 2

• 0

• -1

The curve $x^2=8y$   represents___________

• Circle

• Stright line

• Parabola

• Ellipese

The Curve $\frac{x^2}{4}+\frac{y^2}{9}=1$ represents

• Circle

• Stright line

• Parabola

• Ellipse

The Curve $x^2+y^2=9$ represents

• Circle

• Stright line

• Parabola

• Ellipse

In  $\int_0^2\int_0^{x^{ }}f(x,y)dydx$ , the limit of y varies from ___________

• 0 to 2

• 0 to x

• 2 to x

• 0 to y

In $\int_0^1\int_0^{1-z}\int_0^{1-y-z}xyzdxdydz$ the limit of x varies from____________

• 0 to 1

• 0 to 1-z

• 0 to 1-y-z

• 1 to 1-y-z

 $\int_0^{\frac{\pi}{2}}\int_0^1rdrd\theta$  is ___________

• 0

• 1

•  $\frac{\pi}{4}$  

•  $\frac{\pi}{2}$  

 $\int_0^3\int_0^3\int_0^3dxdydz$  is________

• 3

• 6

• 9

• 27