Comments

Hi guys, when we speak of "modification", it means adding/removing coefficients rather than changing the existing function. So your modifications were not correct as you changed the function entirely. It's like changing a house into an apartment when all we asked was to re-paint it. Can you, as an extra exercise, find out how you could change the coefficients to match the conditions imposed in the question?

JingFeiYu04:39, 2 February 2011

Yes.

BellaTory04:52, 2 February 2011