Question

How do you solve `4 ln x=-2`?

Answer 1

`x=1/sqrte`

Explanation:

`4lnx=-2`

`hArr lnx^4=-2`

`hArr x^4=e^(-2)`

`hArr x=(e^(-2))^(1/4)=e^(-1/2)=1/sqrte`