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12 years ago
how do i take the derivative of a negative power?
Please help ..... thank you.
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wrote...
#1
12 years ago
-1 (7x^2)^-2 (14x)
wrote...
#2
12 years ago
This is combo of chain rule and power rule:

h'(f(x)) * f'(x)

-1(7x^2)^-2  *  14x
wrote...
#3
12 years ago
take v to be (7x^2)

using power rule first take the derivative of the expression in relation to v ie. find the derivative of v^-1

multiply this by the derivitive of v in relation to x ie. find the derivative of 7x^2

you will get -(7x^2)^-2 * 14x

an easier method is to just multiply your powers and derive the total
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