simplify b^(y-1)b^(1-y)
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Originally Posted by lbj2322 simplify b^(y-1)b^(1-y) Assume that $\displaystyle b\ne 0$. $\displaystyle b^{y-1}b^{1-y}=b^{(y-1)+(1-y)}=b^0=1$
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