Maths-
General
Easy
Question
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 -
- the arithmetic mean of a and b
- the geometric mean of a and b
- the harmonic mean of a and b
- equal to zero
The correct answer is: the geometric mean of a and b
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then x
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