If | P×Q |= PQ sinθ = PQ then P & Q are
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Given : | P×Q |= PQ sinθ = PQ
To Find : How P & Q are wrt to each other
Solution:
Cross product of vector = |P||Q|Sinθ
Dot product of vector = |P||Q|Cosθ
| P×Q |= PQ sinθ = PQ
PQ sinθ = PQ
=> sinθ = 1
=> θ = 90°
Hence Vector P & Q are perpendicular Each other
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