TMUA 2022 Paper 2 Q15 — Worked Solution

P2·Indices, Logarithms & Exponentials·6.5Official · 2022 · Q15

change-of-baselogarithm-manipulationsubstitution

The real numbers

x

y

and

z

are all greater than

1

, and satisfy the equations

lo g_{x} y = z and lo g_{y} z = x .

Which one of the following equations for

lo g_{z} x

must be true?

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