If the points 2- k - k - 4 and 0-0 are collinear- then the value of k is A- - 2 -2B- - 2 -3C- - 3 -2D- - 8

The correct option is A ±2√(2)If the three points are collinear, then 2 amp;k amp;0 k amp;4 amp;0 1 amp;1 amp;1=0 k^2=8 k=±√(8)=±2√(2) ...

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Applications of Cross Product

If the points...

Question

If the points $(2, k), (k, 4) and (0, 0)$ are collinear, then the value of $k$ is

\pm 2 \sqrt{2}

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\pm 2 \sqrt{3}

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\pm 3 \sqrt{2}

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\pm 8

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