could someone help me with this: if y= 1/(x+1) find y'...

i tried and i got this equation x^2 +2x +1 is it correct???

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- October 26th 2008, 01:47 PMjuanfe_zodiacsimple derivative of...
could someone help me with this: if y= 1/(x+1) find y'...

i tried and i got this equation x^2 +2x +1 is it correct??? - October 26th 2008, 02:00 PMJhevon
- October 26th 2008, 02:40 PMjuanfe_zodiacsimple derivative of...
i still dont getting it...could u explain me...what chain is that? how do i know that the new derivative is correct?

- October 26th 2008, 02:47 PMRedBarchetta

Use the quotient rule:

Where u=1 and v=x+1..... - October 26th 2008, 04:16 PMJhevon
the chain rule says:

basically, to find the derivative of a composite function, differentiate the outer function (leaving the inner function intact) then multiply by the derivative of the inside function

as for knowing the derivative is correct, look up the answer in your text :D...or check it with integration, but i don't suppose you have started integration as yet