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tiny-mole [99]
3 years ago
7

Find a + b, if b^a = 64 and a^b = 81

Mathematics
1 answer:
jeyben [28]3 years ago
3 0
\bf \begin{array}{llll}
b^a=64\qquad \boxed{64=4^3}\qquad b^a=4^3
\\\\\\
a^b=81\qquad \boxed{81=3^4}\qquad a^b=3^4
\end{array} \qquad 
\begin{cases}
a=3\\
b=4
\end{cases}
\\\\\\
a+b\implies 3+4
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