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Cube and Cube Roots — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSCube and Cube Roots1 Mark
MCQ
Tick $(\checkmark)$ the correct answer: $\sqrt[3]{\frac{64}{343}}=\ ?$
  • A
    $\frac{4}{9}$
  • ✓
    $\frac{4}{7}$
  • C
    $\frac{4}{9}$
  • D
    $\frac{4}{9}$
✓

Answer

Correct option: B.
$\frac{4}{7}$
$\sqrt[3]{\frac{64}{343}}$
$=\sqrt[3]{\frac{4\times4\times4}{7\times7\times7}}$
$=\sqrt[3]{\frac{4^3}{7^3}}$
$=\frac{4}{7}$

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