January 28th, 2019, 02:55 PM  #1 
Newbie Joined: Jan 2019 From: Canada Posts: 1 Thanks: 0  e^3.5555x = 0
It says solve for x. I have no idea how to do this. It is a question on my exponents assignment. Thanks. Maybe I'm completely missing something simple. If you think it's unsolvable at this level, please say so too!
Last edited by skipjack; January 28th, 2019 at 09:21 PM. 
January 28th, 2019, 03:07 PM  #2 
Senior Member Joined: May 2016 From: USA Posts: 1,310 Thanks: 551 
Please give the EXACT and complete wording of the exercise. There is no solution to this problem in the real numbers. 
January 28th, 2019, 03:24 PM  #3 
Senior Member Joined: Aug 2012 Posts: 2,265 Thanks: 690  It's unsolvable at any level since the exponential function is never zero for real or complex exponents.
Last edited by skipjack; January 28th, 2019 at 09:25 PM. 
January 28th, 2019, 03:36 PM  #4 
Senior Member Joined: Dec 2015 From: iPhone Posts: 486 Thanks: 75 
Do you mean $\displaystyle e^x =3.5$? $\displaystyle x=\ln(3.5)\;$ is a complex solution. Last edited by skipjack; January 28th, 2019 at 09:17 PM. 
January 28th, 2019, 09:15 PM  #5 
Senior Member Joined: Aug 2012 Posts: 2,265 Thanks: 690  Oh, that's so obvious now that you pointed it out. I'm terrible at figuring out what questions actually mean. Good catch!
Last edited by skipjack; January 28th, 2019 at 09:18 PM. 

Tags 
exponents 
Thread Tools  
Display Modes  
