Question

Find the first four non-zero terms of the Maclaurin Series for f(x)=cos^2(x).

Do by finding derrivatives and using Taylors formula

Answer 1

understood?

Answer 2

your a flutterin boss yes. but could you please show the series it can be represented as?

Answer 3

you mean maclaurin's series in general?

Answer 4

like a power series representation

Answer 5

this one?

Answer 6

nono i got this series...

(-1)^n (x^(2n))/2n!

Answer 7

from n=0 to infinty of course

Answer 8

haha sorry... i didn't understand your question earlier about the power series... :)

Answer 9

haha all good, so do i have the right one?

Answer 10

erm I don't think so. am i right?

Answer 11

1 + (-1)^n*(2)^2n-1* (x^(2n))/2n!
where n>0, integer.
am i right?

Answer 12

I got the answer, Thanks alot your a hero no joke

Answer 13

just helpin' though. ur wlcome