Show that the statement : \( p \) : If \( x \) is a real number suc...

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Show that the statement :
\( p \) : If \( x \) is a real number such that \( x^{3}+4 x=0 \), then \( x \) is 0 " is true by : method of contrapasitive.
\( \mathrm{P} \)
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