I'm just really stuck on this question I only found the magnitude of OP = 25 and RP=√65
2026-03-27 13:48:24.1774619304
Parallelogram OPQR is such that OP=[-7,24] and OR=[-8,-1] determine the acute angle between the diagonals OQ and RP.
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Hint: Determine the vectors representing OQ and RP, then take the Dot product of them using the $2$ different standard definitions (with one involving the angle between the vectors), and then compare these $2$ results. I trust you can finish the rest yourself.