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Author Topic: P1,sums  (Read 625 times)

Offline thecandydoll

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P1,sums
« on: May 11, 2010, 01:54:11 pm »
I am from CIE,any one following cie text book?
i have a doubt in practice exam 2 pg,287,
Q.no b ii


y=x^3-3x^2+12x

Find dy/dx
hence by completing square or totherwise prove gradient of curve is never less than 0

THANK YOU U!!
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