Given-a-cube-ABCD-EFGH-where-point-Z-is-the-midpoint-of-AE-point-R-on-the-edge-of-BC-such-that-BR-CR-3-1-point-U-on-the-CG-edge-so-that-CG-2GU-where-x-is-the-angle-of-the-BR-line-to-the-BUZ

Question Number 136990 by EDWIN88 last updated on 28/Mar/21

$$ \\ $$Given a cube ABCD.EFGH where point Z is the midpoint of AE, point R on the edge of BC such that BR: CR = 3: 1, point U on the CG edge so that CG = 2GU. where x is the angle of the BR line to the BUZ plane. the value of sin x is equal to

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