Simplify \;[3]{\;8/27} - ≤ft(\;4/9)^{-1/2}

Correct Answer is : −56\;-5/66−5

Correct Answer is : −56\;-5/66−5

Test Index

WAEC Further Mathematics 2011 Paper

Question : 7

Total: 40

Simplify

\;\sqrt[3]{\;\frac{8}{27}} - \left(\;\frac{4}{9}\right)^{-\frac{1}{2}}

Solution:

$\;\sqrt[3]{\;\frac{8}{27}} - \left(\;\frac{4}{9}\right)^{\frac{-1}{2}}$

$\;\frac{2}{3} - \left(\;\frac{9}{4}\right)^{\frac{1}{2}}$

= $\;\frac{2}{3} - \;\frac{3}{2}$

= $\;\frac{-5}{6}$

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