Question

if log √ 81 729 = n the value of n is : (where log 3 = 0.4771)

Answer 1

Answer:

$\bf\,log\sqrt{81\times\,729}=2.3855$

Explanation:

$log\sqrt{81\times\,729}$

$=log(\sqrt{81}\times\sqrt{729})$

$=log(9\times\,27)$

$=log(3^2\times\,3^3)$

$=log\,3^5$

Using, power rule of logarithm

$\boxed{log\,M^n=n\,log\,M}$

$=5\,log\,3$

$=5(0.4771)$

$=2.3855$

$\implies\,\bf\,log\sqrt{81\times\,729}=2.3855$

Answer 2

Answer:

Yes they have written

Explanation:

correctly