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Let →a=2^i+^j−2^k,→b=^i+^j. If ^cis a vector such that →a.→c=|→c|,|→a+→c|=2√3 and angle between →a×→b and →c is 30∘, then |(→a×→b).→c|=

Answer»

Let a=2^i+^j2^k,b=^i+^j. If ^cis a vector such that a.c=|c|,|a+c|=23 and angle between a×b and c is 30, then |(a×b).c|=



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