Mathematics · 2021
JEE Main · 26 February 2021, Shift 1 · Q62
If (1,5,35),(7,5,5),(1, λ, 7) and (2 λ, 1,2) are coplanar, then the sum of all possible values of λ is:
If $\displaystyle (1,5,35),(7,5,5),(1, \lambda, 7)$ and $\displaystyle (2 \lambda, 1,2)$ are coplanar, then the sum of all possible values of $\displaystyle \lambda$ is :
Official answer
(4)
$\displaystyle \frac{44}{5}$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.