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JEE MAIN 2023
02-04-2023-S2
Question
If the four points, whose position vectors are $3 \hat{i}-4 \hat{j}+2 \hat{k}, \hat{i}+2 \hat{j}-\hat{k},-2 \hat{i}-\hat{j}+3 \hat{k}$ and $5 \hat{i}-2 \alpha \hat{j}+4 \hat{k}$ are coplanar, then $\alpha$ is equal to
Select the correct option:
A
$\frac{73}{17}$
B
$-\frac{107}{17}$
C
$-\frac{73}{17}$
D
$\frac{107}{17}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
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