The given limit is a derivative, but of what function f(x) and at what point.

limit as change of x approaches 0 of the (tan(pi/4+change of x)-1)/ change of x.

Please help me I am so bad at these and im so very confused!

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- Oct 22nd 2007, 01:19 PMocmisssunshineDerivative
The given limit is a derivative, but of what function f(x) and at what point.

limit as change of x approaches 0 of the (tan(pi/4+change of x)-1)/ change of x.

Please help me I am so bad at these and im so very confused! - Oct 22nd 2007, 01:22 PMJhevon
- Oct 22nd 2007, 01:26 PMgalactus
$\displaystyle \lim_{h\rightarrow{0}}\frac{tan(\frac{\pi}{4}+h))-1}{h}$

What is $\displaystyle tan(x)$ when $\displaystyle x=\frac{\pi}{4}$?. - Oct 22nd 2007, 01:27 PMocmisssunshine
No I have to find what function F(x) and at what point from the limit which is a derivative. which is the tan(pi/4+deltax)-1 all divided by delta x

- Oct 22nd 2007, 01:30 PMocmisssunshine
the tangent of pi/4 is one

- Oct 22nd 2007, 01:32 PMgalactus
Yes. That's what I am getting at. See the 1 in your limit?. The function you wish to find is in front of you.

- Oct 22nd 2007, 01:35 PMocmisssunshine
omg I look over the obvious all the time. Thank you so much!! I always make things more complicated then they have to be.