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posted by Austin on Friday, January 4, 2013 at 12:04am.
solve the following exponential expression. e^x+e^-x=6
e^x + e^-x = 6 e^x + 1/e^x = 6 hint: let e^x = y y + 1/y = 6 each term by y y^2 + 1 = 6y y^2 - 6y + 1 = 0 solve for y, then sub back into e^x
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