(a) State the limit definition of the derivative of a function f at the point x = a.

(b) Use (a) to find f'(0).

f(x)={x^2cos(ln|x|) if x =/= 0

{0 if x=0

I'm pretty sure you use the squeeze theorem

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- February 17th 2010, 11:30 AMryno16Find a derivative using squeeze theorem
(a) State the limit definition of the derivative of a function f at the point x = a.

(b) Use (a) to find f'(0).

f(x)={x^2cos(ln|x|) if x =/= 0

{0 if x=0

I'm pretty sure you use the squeeze theorem - February 17th 2010, 12:36 PMrunning-gag
Hi

The cosine of any expression is always between -1 and 1 - February 17th 2010, 01:02 PMvince