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Grammy Awards 2017 Live Stream ow,.,.,grammy,.,.,livem,m,mwhat,.,.,channel,.,.,is,.,.,grammys,.,.,tv,.,.,livestream,.,., time,.,.,info,.,.,for,.,.,201
x,, z v = (, b, c) v v 2 + b 2 + c 2 x,, z 1 i = (1, 0, 0), j = (0, 1, 0), k = (0, 0, 1) v 1 = ( 1, b 1, c 1 ), v 2 = ( 2, b 2, c 2 ) v
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11 No.147 No.148No.149
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