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Mathematics 18 Online
OpenStudy (thecalchater):

Fundamental Theorem of Calculus?

OpenStudy (thecalchater):

@DanJS @phi

OpenStudy (thecalchater):

I know it is 14/3.... But I need help explaining the steps.

OpenStudy (thecalchater):

I just integrated it, I didn't use the FTC can you list the steps solving that way for me?

OpenStudy (danjs):

shows the definite integral calculation \[\int\limits_{a}^{b}f(x)dx=F(b) - F(a)\]

OpenStudy (phi):

when you found 14/3 you used the FTC as posted by Dan

OpenStudy (danjs):

for x^(1/2)

OpenStudy (thecalchater):

So how would I list my steps just as regular integration?

OpenStudy (danjs):

integrate f(x) and get F(x) |dw:1454968986946:dw|

OpenStudy (danjs):

that bar on the right means the interval to evaluate

OpenStudy (thecalchater):

so just list this?

OpenStudy (danjs):

F(4) - F(1)

OpenStudy (thecalchater):

?

OpenStudy (danjs):

yeah same , evaluate the integral in terms of x, cept on the F(x) you get , mark it to be evalueated with that bar thing, and then that is F(4)-F(1) to get the value,

OpenStudy (thecalchater):

Oh I see you are using 4 and 1 as the boundaries...

OpenStudy (danjs):

yeah , it is the area under the curve root(x) taken from x=1 to x=4

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