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**[SOLVED] First principles**

Determine the derivatives of the following function from first principles (i.e using the limit

definition of a derivative).

g(x) = x^(3/2)

lim h->0 : (x^(3/2) - (x + h)^(3/2) ) / (-h)

I understand first principles its more so the expansion of the (x + h)^(3/2) that has got me lost.