SOLUTION: Solve for x: e^x + e^-x = 2

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Question 971652: Solve for x: e^x + e^-x = 2
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
e^x + e^-x = 2
e^x + (1/e^x)=2
(e^2x + 1)/e^x =2
Multiply by e^x both sides
e^2x +1 =2 e^x
e^2x-2e^x+1=0
(e^x -1)^2 =0
e^x =1
x=0
check
1 +1 =2