Lnx-ln5=10?

1 Answer
Feb 13, 2018

Answer:

#x =50#

Explanation:

We have:

# ln x -ln 5 = ln 10 #

Using the result lnA=lnB=ln(A/B)# we can write:

# ln(x/5) = ln10 #

The logarithm is a #1:1# function so:

# ln A= ln B iff A=B #

And so we have:

# x/5 = 10 => x =50#