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Unattributed TMUA Mock Set A Paper 2 · Q3

Paper 2Powers & logarithms

If

log⁡2(log⁡3x)=log⁡3(log⁡4y)=log⁡4(log⁡2z)=0,\log_2(\log_3x)=\log_3(\log_4y)=\log_4(\log_2z)=0,

then what is the value of (x+y+z)(x+y+z)?

A99
B88
C77
D66
E55

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