i am stuck on this problem.
Square root of (x+deltaX)+ 2 - square root of (x-2)/ delta x

Question

anonymous · Answer

$$\sqrt{(x+deltax)+2 } - \sqrt{(x+2) } \div deltax                                                                             $$

anonymous · Answer

as delta x approaces 0

anonymous · Answer

Multiply top and bottom by sqrt(x+dx+2)+sqrt(x+2)
Then try :P

anonymous · Answer

i did :D

anonymous · Answer

but i got lost like it was practically the same ting. i wasn't sure if anything can cancel out do i factor out something.

anonymous · Answer

Well you're supposed to get:
$$\frac{1}{2\sqrt{x+2}}$$

anonymous · Answer

After you take the limit.

anonymous · Answer

i didnt get that.

anonymous · Answer