Question

if3√729=9 then 3√0.000729=?​

Answer 1

$3 \sqrt{0.000729} \\ = 3 \sqrt{729 \times {10}^{ - 6} } \\ = 3 \sqrt{729 } \times {10}^{ - 3} \\ = 9 \times {10}^{ - 3} = 0.009$