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# How to integrate this? Urgent help please!!! Watch

1. I don't know how to integrate this...can't get the answer from 'Integration by parts'...Need help please!!!
2. (Original post by Oliviazh)
I don't know how to integrate this...can't get the answer from 'Integration by parts'...Need help please!!!
Try differentiating
3. (Original post by Gregorius)
Try differentiating
Got it now...Well..I think use substitution will be easier...Thanks anyway!
4. (Original post by Oliviazh)
I don't know how to integrate this...can't get the answer from 'Integration by parts'...Need help please!!!
Do it by substitution let u=X^2+3
Then du/dx = 2x
5. (Original post by RPKing)
Do it by substitution let u=X^2+3
Then du/dx = 2x
du = dx/2x
Got it now!! Thank you v much!
6. Can be done by inspection.

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