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प्रश्न
If `hati, hatj, hatk` are unit vectors along three mutually perpendicular directions, then
पर्याय
`hati * hatj = 1`
`hati xx hatj = 1`
`hati * hatk = 0`
`hati xx hatk = 0`
MCQ
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उत्तर
`bb(hati * hatj = 1)`
Explanation:
`hati.hatk = |hati| |hatk| cos π/2`
= 1 × 1 × 0
= 0
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