Mathematics 9709 · AS & A Level · Logarithmic and exponential functions

Logarithmic and exponential functions — practice question

(main)[3]

Solve $\ln(1 + 2^x) = 2$, and give the answer correct to 3 decimal places.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Eliminate the logarithm to reach $1+2^x=e^2$” …

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