Can you help me.

integral from 4 to 1

x=( x^2-x+1)/(sqrt(x))

integral from pie to pie/4

x=secxtanx

integral from 4 to x

u=(2+(sqrt(u))^8

integral

x=sqrt(1+x^2x^5)

integral

x=tan^6xsec^4x

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- Mar 6th 2009, 09:35 AMcolanameIntegral Questions
Can you help me.

integral from 4 to 1

x=( x^2-x+1)/(sqrt(x))

integral from pie to pie/4

x=secxtanx

integral from 4 to x

u=(2+(sqrt(u))^8

integral

x=sqrt(1+x^2x^5)

integral

x=tan^6xsec^4x

- Mar 6th 2009, 12:05 PMReckoner

This one is easy. Just split up the fraction and use the properties of exponents to rewrite each term as a power of

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Well, what is the derivative of the secant? That should make the answer to this one obvious.

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Substitute and then note that

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This has no elementary antiderivative. Did you write it correctly?

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You should be able to take it from here.