Does anyone know how to solve ln x = -2?

[itssimplyme]

I thought natural logs under zero were undefined, but this came up in a past paper question. Or at least, it's one of the steps you have to work through.

 

[redapple20]

I think ln(1÷x)=2 nt sure

 

[itssimplyme]

Wait, I think you're onto something there...

 

[XPFMember]

I thought natural logs under zero were undefined, but this came up in a past paper question. Or at least, it's one of the steps you have to work through.

Assalamoalaikum wr wb!

You're right...logs under zero are undefined but that - 2 isnt in the place of x log of a negative number is undefined...yet u may surely get log of something as negative

take ln to the other side...u get
x = exp(-2)
= 0.135