Question

log base 'x' 81=4.find 'x'
options are;3 4 16 9
whoever answer this quesstion please solve it also

Answer 1

Explanation:

Given,

$log_{x} 81=4$

For a simple explanation, we will look at this from another perspective.

The statement means that there exists a number x, such that

$x^4 = 81$

$x^4 = 3\times3\times3\times3$

∴ $x=\sqrt[4]{3\times3\times3\times3} =3$

Answer: x = 3

I hope this helps, pal. :D