Mathematics · 2022
JEE Main · 27 June 2022, Shift 1 · Q14
If two straight lines whose direction cosines are given by the relations l+ m - n =0,3 l^2+ m^2+ cn l=0 are parallel, then the positive value of c is:
If two straight lines whose direction cosines are given by the relations $\displaystyle l+\mathrm{m}-\mathrm{n}=0,3 l^2+\mathrm{m}^2+\mathrm{cn} l=0$ are parallel, then the positive value of c is :
Official answer
(1)
$\displaystyle 6$
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JEE Main 2022 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.