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Three vectors → P , → Q and → R are shown in the figure. Let S be any point on the vector → R . The distance between the points P and S is b | → R |. The general relation among vectors , → P , → Q and → S is Y O X Q P S b | → R | → P → S → Q → R = → Q – → P

→ S = (1 – b 2 ) → P + b → Q
→ S = (1 – b) → P + b → Q
→ S = (1 – b) → P + b 2 → Q
→ S = (b – 1) → P + b → Q

Correct answer: → S = (1 – b) → P + b → Q

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