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?
Users browsing this forum: No registered users and 9 guests