Thread: Integrating a fraction

Hi there,

can somebody help me to integrate the following:



I've used Mathcad to find that the answer is



But I don't know any formulas or equations to use to get to the answer.

I would really appreciate any help.

Thanks.

Originally Posted by Srengam

Hi there,

can somebody help me to integrate the following:



I've used Mathcad to find that the answer is



But I don't know any formulas or equations to use to get to the answer.

I would really appreciate any help.

Thanks.

Originally Posted by Srengam

Hi there,

can somebody help me to integrate the following:





I've used Mathcad to find that the answer is



But I don't know any formulas or equations to use to get to the answer.

I would really appreciate any help.

Thanks.

First write the integral using a negative index before applying the
power rule of integration.



Now increase the index of y by 1 and divide by the new index.

Originally Posted by Archie Meade

Now increase the index of y by 1 and divide by the new index.

And add 'c'

Sorry, now I can't understand how to do the integration



I don't what equation or formula to use? I've never had the integrate a fractional power before, and can't find how anywhere in my notes.

Thanks.

Originally Posted by Srengam

Sorry, now I can't understand how to do the integration



I don't what equation or formula to use? I've never had the integrate a fractional power before, and can't find how anywhere in my notes.

Thanks.

same as the rule for any other exponent (except -1) ...

Thanks all,

I've been able to work through it now with your help.