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vector(a,b,c) will be co-planar if(a) vector((a.b)c) = 0(b) vector(a.(b x c)) = 0(c) vector(a x(b x c)) = 0(d) vector(a.(b + c)) = 0 |
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Answer» Answer is (b) vector(a.(b x c)) = 0 |
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