For two vectors A→ and B→, it is given that |A→+B→|=|A→−B→| then vectors A→ and B→ are

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Parallel to each other

Perpendicular to each other

Ant parallel to each other

None of these

answer is B.

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Detailed Solution

|A→+B→|=|A→−B→||A→+B→|2=|A→−B→|2 A2+B2+2Abcosθ=A2+B2−2ABcosθ4ABcosθ=0,cosθ=0⇒θ=900∴A→⊥B→

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