Recent content by selfteaching9

Thanks Mark. I think I figured it out. It turns out I was creating my own problem all along. The actual statement Spivak wants me to prove is: (a/b)/(c/d)=(ad)/(bc) By defining this as: (ab^-1)(cd^-1)^-1=(ad)(cb)^-1, I created my own problem. All I have to do to "distribute exponents"...

Homework Statement Prove: $\left(ab^{-1}\right)\left(cd^{-1}\right)^{-1}=\left(ad\right)\left(cb\right)^{-1}$. I know how to distribute exponents to get both sides to look identical... Homework Equations ...but a step in the solution requires distributing exponents. But how do...