The area bounded by the curve $y=|x-2|, x=1$, $x=3$ and $\mathrm{X}$-axis is

The area bounded by the curve $y=|x-2|, x=1$, $x=3$ and $\mathrm{X}$-axis is
  1. 3 sq. units
  2. 2 sq. units
  3. 1 sq. units
  4. 4 sq. units

Solution

$\begin{aligned} \text { Required area } & =\int_1^3|x-2| \mathrm{d} x \\ & =\int_1^2(2-x) \mathrm{d} x+\int_2^3(x-2) \mathrm{d} x \\ & =\left[2 x-\frac{x^2}{2}\right]_1^2+\left[\frac{x^2}{2}-2 x\right]_2^3 \\ & =\frac{1}{2}+\frac{1}{2}=1 \text { sq. unit }\end{aligned}$

Asked in: MHT CET 2023 (14 May Shift 2)

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