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(1+2x) ^(5/2)
So far i have
1 + 5x – 15/2 x² but am not sure about the x³
thanks
The generalized binomial formula where c does not have to be an integer says
where, with c not an integer, we interpret as , for n= 0, 1 for n= 0.
In this case, with c= 5/2, , so the term is 1, so the "x" term is (5/2)(2x)= 5/2 x as you say. as you say.
Check my arithmetic!