The position vectors of the vertices A, B, C and D of a quadrilateral ABCD are given by 3 i +4 j -2 k , 4 i...

Question

The position vectors of the vertices A, B, C and D of a quadrilateral ABCD are given by 3 i +4 j -2 k , 4 i -4 j -3 k , 2 i -3 j +2 k and 6 i -2 j + k respectively. What is the angle between the diagonals AC and BD of the quadrilateral?

Accepted Answer

(A)

NDA 2025 Mathematics question

Solution

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