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Find the solution of $3e^{2x} - 4e^{-2x} = 5$. State the answer correct to $3$ decimal places.
Mathematics 9709 · AS & A Level · Logarithmic and exponential functions
Logarithmic and exponential functions — practice question
Worked solution & mark scheme
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Set up a 3-term quadratic in $e^{2x}$, for instance $3(e^{2x})^2-5(e^{2x})-4=0$.” …
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