# How to find f'(a) of this equation?

• February 22nd 2010, 02:54 PM
How to find f'(a) of this equation?
• February 22nd 2010, 02:54 PM
Ted
Quote:

Differentiate it to get $f'(t)$ , then put $t=a$.
• February 22nd 2010, 02:59 PM
Quote:

Originally Posted by Ted
Differentiate it to get $f'(t)$ , then put $t=a$.

Ok, how would I differentiate it? BTW, we are still in the limits unit, so I have no idea what all these derivatives terms mean.
• February 22nd 2010, 03:02 PM
Ted
Quote:

Ok, how would I differentiate it? BTW, we are still in the limits unit, so I have no idea what all these derivatives terms mean.

Well, Use the rule:

$f'(a) = \lim_{t\to a} \frac{f(t)-f(a)}{t-a}$.
• February 22nd 2010, 03:03 PM
$f'(a) = \lim_{t\to a} \frac{f(t)-f(a)}{t-a}$.