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Find the set of $x$ values that satisfy $|2^{x+1} - 2| < 0.5$, and give your result correct to $3$ significant figures.
Mathematics 9709 · AS & A Level · Logarithmic and exponential functions
Logarithmic and exponential functions — practice question
Worked solution & mark scheme
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Apply a valid method to solve an equation or inequality of the form $2^{x+1}=a$ or $2^x=b$ with $a,b>0$.” …
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