The equation that i cannot solve is (e^x + e^-x) / 2 = 4
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Originally Posted by ubhutto The equation that i cannot solve is (e^x + e^-x) / 2 = 4 Hint: The equation is quadratic in First multiply the equation by This gives If you want you can use the substition to get the quadratic Can you finish from here?
what was your final answer because my equation won't balance
Originally Posted by ubhutto what was your final answer because my equation won't balance Some better questions: Did you follow what TheEmptySet told you to do? Do you know how to solve a Quadratic Equation? Where exactly did you get stuck? Why not show your working out? Then we can give you some more guidance.
i figured it out its ln(8-sqrt(60))/2)
That is ONE of the two possible answers. What is the other?
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