If the points A(3, 2, 1), B(4, x, 5), C(4, 2, -2) and D(6, 5, -1) are coplanar then x has the values

MHT CET 2022 Mathematics question

If the points , , and are coplanar then x has the values

Answer: (B)

Four points are coplanar if , , have zero scalar triple product. , , . The determinant is $1(0·(-2) - (-3)(3)) - (x -

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Question ID VK-095982