Question

Evaluate the following definite integral

Answer 1

\[\int\limits_{-1}^{2} \left| X \right| dx\]

Answer 2

I got 3/2 this is the wrong answer
the correct answer is 2.5

Answer 3

Can you show me your working ?

Answer 4

\[\left| x \right| \]
\[\frac{ x^2 }{ 2 }\]
\[(\frac{ 2^2 }{ 2 })- (\frac{ -1^2 }{ 2 })\]
(4/2)-(1/2)
3/2

Answer 5

1) Convention suggests that \(X\) is NOT the same as \(x\). Please don't switch variable in the middle of a problem.

2) You have simply ignored the absolute value. That's no good. Split the integral at \(x = 0\) and see if you can manage a different result.

Answer 6

I'm still not sure what to do