Question

If $3^x=810$, then $3^{x-4}=$

Answer 1

We have,

$3^x=810$

Since,

$=3^{x-4}$

$=3^x\times 3^{-4}$

$=810\times \frac{1}{3^4}$

$=810\times \frac{1}{81}$

$=10$

Hence, this is the answer.