Question

AJUTOR!!!!! Multumesc anticipat!!​

Answer 1

Răspuns:

Avem

$\overrightarrow{AM}+\overrightarrow{BN}+\overrightarrow{CP}+\overrightarrow{DQ}=\displaystyle\frac{1}{2}\overrightarrow{AB}+\frac{1}{2}\overrightarrow{BC}+\frac{1}{2}\overrightarrow{CD}+\frac{1}{2}\overrightarrow{DA}=\\=\frac{1}{2}(\overrightarrow{AB}+\overrightarrow{BC}+\overrightarrow{CD}+\overrightarrow{DA})=\frac{1}{2}\cdot\overrightarrow{0}=\overrightarrow{0}$

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