Two adjacent sides of a parallelogram PQRS are given by PQ = j + k and PS = i - j. If the side PS is rotated...

Question

Two adjacent sides of a parallelogram PQRS are given by PQ = j + k and PS = i - j. If the side PS is rotated about the point P by an acute angle α in the plane of the parallelogram so that it becomes perpendicular to the side PQ, then ^2 ( 5 2 ) - ^2 ( 2 ) is equal to:

Accepted Answer

(B)

JEE Main 2026 Mathematics question

Solution

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