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OpenStudy (loser66):
Show that a rotation \(R_{P, \theta}\) is equivalent to the composition of 2 reflections in intersecting lines \(l_1~and~l_2\). If \(\alpha\) is the angle between \(l_1~and~l_2\), show that \(\theta=2\alpha\) Please, help
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Miracrown (miracrown):
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