SOLUTION: e^x-e^-x=1 Hint: multiply e^x on both sides I know this involves natural log but I have no idea what to do. Please help!

Question 831686: e^x-e^-x=1 Hint: multiply e^x on both sides
I know this involves natural log but I have no idea what to do. Please help!
Answer by hovuquocan1997(83) (Show Source): You can put this solution on YOUR website!
you have e^-x = 1/e^x (convert)
So the equation will become
e^x - 1/e^x = 1
multiply e^x like you said

Then you can let e^x = a and the equation will become

You can solve this equation using quadratic formula, then you will get two answer
=
and =
Remember you let e^x = a? Now change a into e^x
You have =
Then you use natural log on both side, you will have
= and then use calculator to find it
And then you find another answer with = using the same method
TA-DAH
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