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Mathematics · 2024 · 1 mark
CBSE 2024 · Region 1 · Set 1 · Q9
If the direction cosines of a line are √ 3 k, √ 3 k, √ 3 k, then the value of k is:
If the direction cosines of a line are $\displaystyle \sqrt{3} \mathrm{k}, \sqrt{3} \mathrm{k}, \sqrt{3} \mathrm{k}$, then the value of k is :
Official answer
(D)
$\displaystyle \pm \frac{1}{3}$
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CBSE Class 12 Mathematics past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.