- Thread starter Leiloio
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Are you asking that someone here solves this for you? On this forum we prefer that the student solves their own problem with help from forum helpers. So please post back.

We have a isosceles triangle l, an angle is a random variable X between 0 and pi/2 X=kx(pi-x)

I have to calculate the expected value, and i try to do the integral... other people calculate the density function and made the integral, i thought i can do directly the integral from 0 to pi/2 x A(x)

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\(\displaystyle -0.210834676740899235446490727729394381940321035952272512618100274156737871242552076157591563972493302\)

The exact answer is given in terms of the Fresnel S and C integrals.

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