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Value of ∫−22∣2x+1∣dx\int_{-2}^{2}|2x+1|dx is:

Solution

✅ Correct Option: 1

The expression 2x+12x+1 changes sign at x=−12x=-\frac{1}{2}, so split the integral there.

∫−2−1/2−(2x+1)dx=94\int_{-2}^{-1/2}-(2x+1)dx=\frac{9}{4} and ∫−1/22(2x+1)dx=254\int_{-1/2}^{2}(2x+1)dx=\frac{25}{4}, giving a total of 344=172\frac{34}{4}=\frac{17}{2}.

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