simple function problem
I have just started uni maths and never having done it before I'm having trouble with real simple things (I think)
this is a question from the washington book
one is this:
f(T) = 10.0 + 0.10T + 0.001T^2
t is temperature increases by 10 so f(T + 10)
f(T + 10) = 10 + 0.10(T + 10) + 0.001(T + 10)^2
= 10.0 + 0.10T + 1.0 + 0.001T^2 +0.02T + 0.1
I get how the first half works out but the second bit in bold I have no idea how that is possible, as I said its probably very simple but I've been staring at it for ages and can't figure it out...
Would really appreciate any help
:). The book skipped one step.
Originally Posted by dla
It should have shown that the (T +10)^2 is expanded to
(T^2 +20T +100).
The book can skip one step, two steps, etc., depending on how it assumes the reader can follow the solution.