SOLUTION: Solve for X:
e^x+3e^-x-18=0
Algebra.Com
Question 36046: Solve for X:
e^x+3e^-x-18=0
Answer by venugopalramana(3286) (Show Source): You can put this solution on YOUR website!
Solve for X:
e^x+3e^-x-18=0...........LET E^X=Y..THEN....E^(-X)=1/E^X=1/Y...HENCE
Y+3/Y-18=0....MULTIPLYING WITH Y
Y^2-18Y+3=0
=E^X
TAKING LOGS ON BOTH SIDES TO BASE E,WE GET
X=2.88 OR -1.78
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