Question

Chapter 5: Indices and Logarithms

Answer 1

\[If~3^{m+1}=5^{n-1}=15^p,show~that~p(m+n)=(m+1)(n-1)\]

Answer 2

@ganeshie8

Answer 3

you need 2 concepts here - you can do it with these:

First
\[\log a^{n} = nlog a\]
so
\[\log 3^{m+1} = (m+1) \log 3\]

Second
Log (a*b) = log a + log b

so log 15 = log (5*3) = log5 + log 3

Armed with that information - have a go at solving for yourself

Answer 4

come on Laino. what are you doing?