Asked by Ekingdeft
If Log27 in base5=x and Log5 in base3=y., find xy
Answers
Answered by
Damon
x = log5 (27)
5^x =27 = 3^3
log3 (3^3) = log3 (5^x)
3 log 3 (3) = x log3 (5)
but log 3 (3) = 1
so
3 = x log3 (5)
log3 (5) = 3/x
and
y = log3 (5)
so
y = 3/x
x y = 3
5^x =27 = 3^3
log3 (3^3) = log3 (5^x)
3 log 3 (3) = x log3 (5)
but log 3 (3) = 1
so
3 = x log3 (5)
log3 (5) = 3/x
and
y = log3 (5)
so
y = 3/x
x y = 3
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