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Area of region bounded by the curves x=y3x = y^3, x=0x = 0 between y=1y = -1 and y=2y = 2 is:

Solution

Correct Option: 2

The area is bounded by the curve x=y3x = y^3, the y-axis (x=0x = 0), between y=1y = -1 and y=2y = 2.

Since the equation is given as xx in terms of yy, integrate with respect to yy.


The curve x=y3x = y^3 at different y-values:

At y=1y = -1: x=(1)3=1x = (-1)^3 = -1 (left of y-axis)

At y=0y = 0: x=03=0x = 0^3 = 0 (on the y-axis)

At y=2y = 2: x=23=8x = 2^3 = 8 (right of y-axis)

The curve is to the left of the y-axis from y=1y = -1 to y=0y = 0, and to the right from y=0y = 0 to y=2y = 2.


For integration with respect to yy:

Area =(xrightxleft)dy= \int (x_{\text{right}} - x_{\text{left}}) \, dy

From y=1y = -1 to y=0y = 0:

Right boundary: x=0x = 0, Left boundary: x=y3x = y^3

A1=10(0y3)dyA_1 = \int_{-1}^{0} (0 - y^3) \, dy

A1=10y3dyA_1 = \int_{-1}^{0} -y^3 \, dy

From y=0y = 0 to y=2y = 2:

Right boundary: x=y3x = y^3, Left boundary: x=0x = 0

A2=02(y30)dyA_2 = \int_{0}^{2} (y^3 - 0) \, dy

A2=02y3dyA_2 = \int_{0}^{2} y^3 \, dy


A1=10y3dyA_1 = \int_{-1}^{0} -y^3 \, dy

A1=[y44]10A_1 = \left[-\frac{y^4}{4}\right]_{-1}^{0}

A1=(0)44((1)44)A_1 = -\frac{(0)^4}{4} - \left(-\frac{(-1)^4}{4}\right)

A1=0+14A_1 = 0 + \frac{1}{4}

A1=14A_1 = \frac{1}{4}


A2=02y3dyA_2 = \int_{0}^{2} y^3 \, dy

A2=[y44]02A_2 = \left[\frac{y^4}{4}\right]_{0}^{2}

A2=(2)44(0)44A_2 = \frac{(2)^4}{4} - \frac{(0)^4}{4}

A2=1640A_2 = \frac{16}{4} - 0

A2=4A_2 = 4


Total Area =A1+A2= A_1 + A_2

Total Area =14+4= \frac{1}{4} + 4

Total Area =14+164= \frac{1}{4} + \frac{16}{4}

Total Area =174= \frac{17}{4} square units

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