\( A, B, C \) and \( D \) have position vectors \( \vec{a}, \vec{b}... VIDEO
\( A, B, C \) and \( D \) have position vectors \( \vec{a}, \vec{b}, \vec{c} \) and \( \vec{d} \), respectively, such that \( \vec{a}-\vec{b}=2(\vec{d}-\vec{c}) \). Thenhttps://bit.ly/YTAI_PWAP https://www.pw.live
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