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CAIE A Level Mathematics 9709 · Logarithmic and exponential functions

Logarithmic and exponential functions: calculation question

4 marksStandard

Solve the equation 52x−2=41x−15^{2x - 2} = 4^{1x - 1} for xx. Give your answer correct to 3 significant figures.

  1. (a)

    Find xx to 3 significant figures.

    [4]

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