If there is an error of \( k \% \) in measuring the edge of a cube, then the percent error in es...

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If there is an error of \( k \% \) in measuring the edge of a cube, then the percent error in estimating its volume is
\( \mathrm{P} \)
(1) \( k \)
(2) \( 3 k \)
W
(3) \( \frac{k}{3} \)
(4) none of these
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