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if \[\log_{9}4=a\]and \[\log_{27}5=b\] find an expression in terms of a & b for \[\log_{3}80\]
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i had that backwards \[2\log_9(4)=\log_3(4)\] and \[3\log_{27}(5)=\log_3(5)\] now lets see what we can do with \(\log_3(80)\)
since \(80=4^2\times 5\) we can write \[\log_3(80)=\log_3(4^2\times 5)=\log_3(4^2)+\log_3(5)=2\log_3(4)+\log_3(5)\]
now substitute back for \(a\) and \(b\) and you will get your answer
this is how they explained for me to do it...so im sort of just going by this. lookin at what you did... im gettng a little lost... /:
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