Mathematics · 2026
JEE Main · 5 April 2026, Shift 1 · Q15
The square of the distance of the point of intersection of the lines r =( i + j - k )+λ(a i - j ), a ≠ 0 and r =(4 i - k )+μ(2 i +a k ) from the…
The square of the distance of the point of intersection of the lines $\displaystyle \vec{r}=(\hat{i}+\hat{j}-\hat{k})+\lambda(a \hat{i}-\hat{j}), a \neq 0$ and $\displaystyle \vec{r}=(4 \hat{i}-\hat{k})+\mu(2 \hat{i}+a \hat{k})$ from the origin is:
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 17$
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JEE Main 2026 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.