In a quadrilateral \( A B C D \) it is given that \( A B \| C D \) and the diagonals \( A C \) a... VIDEO
In a quadrilateral \( A B C D \) it is given that \( A B \| C D \) and the diagonals \( A C \) and \( B D \) are perpendicular to each other, Show that \( A D \cdot B C \geq A B \cdot C D \).https://bit.ly/YTAI_PWAP https://www.pw.live
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(i) A vector of magnitude \( \sqrt{6} \) perpendicular to the plane \( A B C \)
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