WAEC - Mathematics (1989 - No. 30)
Simplify \(\frac{9^{-\frac{1}{2}}}{27^{\frac{2}{3}}}\)
1
1/3
1/9
1/18
1/27
Explicaţie
\(\frac{9^{-\frac{1}{2}}}{27^{\frac{2}{3}}}\)
=\(\frac{3^{-1}}{3^2}\) = \(\frac{1}{27}\)
\(\frac{9^{-\frac{1}{2}}}{27^{\frac{2}{3}}}\)
=\(\frac{3^{-1}}{3^2}\) = \(\frac{1}{27}\)