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Let →a=α^i+2^j−3^k,→b=^i+2α^j−2^k and →c=2^i−α^j+^k and {(→a×→b)×(→b×→c)}×(→c×→a)=→0, then the value of 6α is

Answer» Let →a=α^i+2^j−3^k,→b=^i+2α^j−2^k and →c=2^i−α^j+^k and {(→a×→b)×(→b×→c)}×(→c×→a)=→0, then the value of 6α is


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