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in Applications of Vector Algebra by (49.5k points)
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Let a, b, c be distinct non-negative numbers. If the vectors ai + aj + ck, i + k and ci + cj + bk lie in a plane, then c is …

(a) the A.M. of a and b 

(b) the G.M. of a and b 

(c) the H.M. of a and b 

(d) equal to zero.

1 Answer

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by (48.8k points)
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Best answer

(b) the G.M. of a and b

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