# Trigonometry

log3(x^2)=2log3(4)-4log3(5)

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1. Trig ???

log3(x^2)=2log3(4)-4log3(5)
log3 x^2 = log34^2 - log35^4

log3x^2 = log3(16/625)
x^2 = 16/625
x = ± 4/25

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posted by Reiny

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