. The area of the region bounded by the curve $y = x + 1$ and the lines $x = 2$ and $x = 3$ is
• $\frac{7}{2}$ sq units
• $\frac{9}{2}$ sq units
• $\frac{{11}}{2}$ sq units
• $\frac{{13}}{2}$ sq units
Correct Option (a)
. The area of the region bounded by the curve $y = x + 1$ and the lines $x = 2$ and $x = 3$ is
• $\frac{7}{2}$ sq units
• $\frac{9}{2}$ sq units
• $\frac{{11}}{2}$ sq units
• $\frac{{13}}{2}$ sq units
Correct Option (a)
Official Solution
From the figure, are of the shaded region,
$A = \int_2^3 {(x + 1)} dx = \left[ {\frac{{{x^2}}}{2} + x} \right]_2^3 = \left[ {\frac{9}{2} + 3 - \frac{4}{2} - 2} \right] = \frac{7}{2}$ sq. units
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