Thread: Integrals

Whats the difference between dt and dx?

F(X) = e^x + ∫ sin t dt

F(X) = e^x + ∫ sin t dx

Then calculate F`(π)

∫ is 1 and x.

Somebody who can explain this kind of integrals shortly? why dt and not dx?

is just a dummy variable.

Fundamental theorem of calculus ...

ok, so if i understand you correct

∫ sin t dt <=> ∫ sin x dx

its just an other way to whrite it?

Originally Posted by ronaldopeter

Whats the difference between dt and dx?

F(X) = e^x + ∫ sin t dt

F(X) = e^x + ∫ sin t dx

Then calculate F`(π)

∫ is 1 and x.

Somebody who can explain this kind of integrals shortly? why dt and not dx?

were these meant to be different functions, F(x) ?