Problem: If log(base a)5 = x and log (base a)7 = y, then log (base a) 1.4^(1/2) =?
The answer is 1/2 x (y-x)
(I hope you follow my notation) Thanks!
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We have and and a target of
Seems easiest to work backwards. as
The task becomes getting in terms of and
Think about your log laws here.
I used the subtraction rule to get 1/2(y-x)
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