Forum for the GRE subject test in mathematics.
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- Joined: Sun Jun 28, 2009 3:42 pm
I have difficutlities to solve these kind of questions for example questionn 44 in GRE9367:
if x is real and P a polynomial function then lim (P(x+3h)-P(x-3h-2P(x))/h^2 as h--> 0 =
the right answer is 9P''(x)
how can we get it?
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- Joined: Thu Nov 20, 2008 2:30 am