log(a) b = 1/log(b) a
log(5) 3 = 1/ log(3) 5
a^log(a) b = b
log(a) b^n = n log(a) b
30. 3^(2/log(5) 3) = 3^(2log(3) 5) = 3^(log(3) 25) = 25
31. 5^(2/log(3) 5) = 5^(2log(5) 3) = 5^(log(5) 9) = 9
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log(a) b = 1/log(b) a
log(5) 3 = 1/ log(3) 5
a^log(a) b = b
log(a) b^n = n log(a) b
30. 3^(2/log(5) 3) = 3^(2log(3) 5) = 3^(log(3) 25) = 25
31. 5^(2/log(3) 5) = 5^(2log(5) 3) = 5^(log(5) 9) = 9