Question

Simplify.

Answer 1

\[\frac{ \frac{ a }{ 2x+h } -\frac{ a }{ 2x}}{ h }\]

Answer 2

@Cosmichaotic

Answer 3

are you differntiating a/2x using first principle or limits

Answer 4

The assignment says to simplify, that's all

Answer 5

see
(a/(2x+h) - a/2x )/h = a/h * ( 1/(2x+h) -1/2x)
=a/h * ( (2x) -(2x+h) )/( (2x)*(2x+h))
can you proceed from here..

Answer 6

Ah...? Just multiply across?

Answer 7

@Cosmichaotic

Answer 8

Hey we're just dealing with fractions here, so try using this:

\[\frac{ a }{ b }-\frac{ c }{ d } = \frac{ ad-bc }{ bd }\] try this on the numerator, good luck! :)

Answer 9

Thanks! And sorry, I was in an area with no internet access these past few days