Practicing Success
The area bounded by the curve y = x3, the x-axis and the ordinates x = –2 and x = 1 is |
–9 –15/4 15/4 17/4 |
17/4 |
The bounded area is shown shaded in the fig. The required Area = Area(OABO) + Area(OCDO) $=\begin{vmatrix}\int\limits_0^1x^3dx\end{vmatrix}+\begin{vmatrix}\int\limits_{-2}^0x^3dx\end{vmatrix}=\begin{vmatrix}\frac{x^4}{4}\end{vmatrix}_0^1+\begin{vmatrix}\frac{x^4}{4}\end{vmatrix}_{-2}^0$ $=\frac{1}{4}+4=\frac{17}{4}$ sq. units. Hence (D) is the correct answer. |