How do I evaluate this integral?

[frasifrasi]

I don't understand how the book example went from

integral from -1 to 0 of [e^(x).cos(e^x)]dx

to sin(e^x)]evaluate at -1 and 0.

Can someone please explain?

 

[learningphysics]

I don't understand how the book example went from

integral from -1 to 0 of [e^(x).cos(e^x)]dx

to sin(e^x)]evaluate at -1 and 0.

Can someone please explain?

Use a substitution of u = e^x.

 

[frasifrasi]

Yes! thank you.

 

[learningphysics]

Yes! thank you.

no prob.