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Numerade Educator



Problem 56 Hard Difficulty

Find the angle between a diagonal of a cube and a diagonal of one of its faces.




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Video Transcript

the problem is finding that angle between your Devon off a cube and a magno off one of its physicists. Look at this. A graph here that is the ex Whitey his likes. Well, axis and see access. This water is two down Now off this called Cube You know, we assume the last of if its edges is equal to one. So two buck chair of the diagonal of this cube is he coached you We use these for two one one on one and a Taliban off one is faces This factor this is you call Chiu one Cyril on one. Everything out angle between this two actors, He's dead. So we have consign later is equal to you. Got three over magnitudes A few taps magnitude Tau V This is a culture true over you. Tough two times the reason this is your country too. Oh, Virgin Tiff six This is a country until six over three. So, beta is he caught you call Sign humors. Thanks. Over three