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Simplify frac 3x 3 3x 3 - WAEC Mathematics 2007 Question

Simplify (\frac{3x^3}{(3x)^3})

A
1
B
13
C
19
D
127
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Correct Option: C

(\frac{3x^3}{(3x)^3}) = (\frac{3 \times x^3}{3^3 \times x^3})

= (\frac{3 \times x^3}{3 \times 3 \times 3 \times x^3})

= (\frac{1}{3^2})

= (\frac{1}{9})

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