Question

Write the following logarithmic expression as a single logarithm with coefficient 1.
log9 - 2logk

Answer 1

Answer:

Step-by-step explanation:

Answer 2

A logarithmic equation is an equation that involves the logarithm of an expression containing a variable.

$log9 - 2log k$ will be equal to  $log(\frac{9}{k^{2} } )$

Rule in logarithmic expression,

              $m(loga)=log(a)^{m} \\\\log(a)-log(b)=log(\frac{a}{b} )$

We have to find,   $log9 - 2log k$

Applying above rules.

We get,      $log9 - 2log k=log(9)-log(k^{2} )\\\\=log(\frac{9}{k^{2} } )$

So, first option is correct.

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