kathrynboon3
kathrynboon3
26-11-2017
Mathematics
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Find a + b, if b^a = 64 and a^b = 81
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jdoe0001
jdoe0001
26-11-2017
[tex]\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[/tex]
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