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CUET
-- Mathematics - Section A
Definite Integration
The value of the integral $I=\int\limits_{-3}^3|x| d x$ is:
18
0
9
-9
The correct answer is Option (3) → 9
$I=\int\limits_{-3}^3|x| d x=2×\int\limits_0^3x\,dx$
$=2×\left[\frac{x^2}{2}\right]_0^3=9$
