Could anyone solve this:

lim (x -> o) ((1-cos3x) / 7x^2)

Thanks!

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- January 5th 2008, 08:06 AMclapauciusLimit
Could anyone solve this:

lim (x -> o) ((1-cos3x) / 7x^2)

Thanks! - January 5th 2008, 08:34 AMKrizalid
Consider

Substitute

Multiply both sides by to get the answer. - January 5th 2008, 09:36 AMSoroban
Hello, clapaucius!

Here's one way . . . there may be better ways.

Quote:

Multiply by

. .

Multiply by

. .

Hence: .

- January 5th 2008, 12:16 PMclapaucius
is correct ... Thanks!!

- January 5th 2008, 07:04 PMThePerfectHacker
Use a Taylor 3rd Degree polynomial.