Ryan (skierpunkguy) wrote in uw,

When I have a math test coming up, I always refer to it as a mortal enemy:

I'm going to slay this test.

Prepare to die, differential.

I will bathe in your blood, body of revolution.

Anyway, I have a perplexing question:

Take the error function

= E(X)

If G(X)= E(sqrt(X))

Find G'(X)

I have a feeling that the fundamental theorem of calculus plays an important role here, but I don't know what it is. I end up still trying to integrate e^-(X^2), which is near impossible. Maybe I U substitute the X^2, and end up with -(1/2)e^-(X^2)? Then I could plug in the sqrtX and find dG/dX. Hmmmm

If anyone knows, tell me.
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