JAMB - Mathematics (2002 - No. 1)
Without using tables, evaluate \((343)^{\frac{1}{3}} \times (0.14)^{-1} \times (25)^{-\frac{1}{2}}\)
10
12
8
7
คำอธิบาย
\((343)^{\frac{1}{3}} \times (0.14)^{-1} \times (25)^{-\frac{1}{2}}\)
= \(\sqrt[3]{343} \times (\frac{14}{100})^{-1} \times (\sqrt{25})^{-1}\)
= \(7 \times \frac{100}{14} \times \frac{1}{5}\)
= 10.