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Differentiation! :O :( ahhhhhhh

saltsticks

Posted 06 April 2010 - 04:46 PM

How do i differentiate this??



y= (x^4 +2) divided by x^3 ????


HELP!!

SAitken

Posted 08 April 2010 - 05:48 PM

Differentiate y= (x^4 +2) divided by x^3 ????

Split into two fractions: x^4 / x^3 + 2 / x^3

x^4 / x^3 = x and 2 / x^3 = 2x^-3

Now you can differentiate.

Differentiate x gives 1. Differentiate 2x^-3 gives -6x^-4.

Take negative power back down to denominator...

Final answer is 1 - 6 / x^4

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