Area Under the Curve
Area Under Curves
nta_abhyas_2025
Grade 12

Question:

The area bounded by $y = xe^{|x|}$ and the lines $|x| = 1$, $y = 0$ is
4 sq units
6 sq units
3 sq unit
2 sq units

Step-by-Step Solution

Key Concept: Determine which function is on top, then integrate the difference over the interval of intersection.
The area between $y = x^2$ and $y = x$ from $0$ to $1$ is $\int_0^1(x - x^2)dx = [\frac{x^2}{2} - \frac{x^3}{3}]_0^1 = \frac{1}{2} - \frac{1}{3} = \frac{1}{6}$ sq unit.
Correct Answer: 2

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