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If →a=2^i+^j+3^k, →b=3^i+2^j+^k, →c=^i−^j−4^k and →d=^i+2^j−^k, then (→a×→b)×(→c×→d)= |
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Answer» If →a=2^i+^j+3^k, →b=3^i+2^j+^k, →c=^i−^j−4^k and →d=^i+2^j−^k, then (→a×→b)×(→c×→d)= |
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