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WAEC - Mathematics (2005 - No. 23)

If \(log_9x= 1.5\),find x
36
27
24.5
13.5

Explicaţie

\(log_9x= 1.5\Rightarrow x = 9^{1.5} = 9^{\frac{3}{2}}=(3^2)^{\frac{3}{2}}=3^3=27\)

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