Math Help - Just a trial.

1. Just a trial.

$x^2+y_1+z_(12)$

$d/dxf(x)=lim_(h->0)(f(x+h)-f(x))/h
$

so sorry.it is just a trial.

how to input the theroms?

2. [quote=fivestarswoo;463120]x^2+y_1+z_12^34

$\frac{d}{dx}f(x)=\lim_{h\to 0}\frac{f(x+h)-f(x)}{h}$

so sorry.it is just a trial.

how to input the theroms?

3. Originally Posted by fivestarswoo
$x^2+y_1+z_(12)$

$d/dxf(x)=lim_(h->0)(f(x+h)-f(x))/h
$

so sorry.it is just a trial.

how to input the theroms?
$$\frac{d}{dx}f(x)=\lim_{h\to 0}\frac{f(x+h)-f(x)}{h}$$ gives the correct result.