The sum, difference and cross produce of two vectors `A` and `B` are mutually perpendicular if
A
`A` and `B` are perpendicular to each other and `|A|=|B|`
B
`A` and `B` are perpendicular to each other
C
`A` and `B` are perpendicular but their magnitude are arbitrary
D
`|A|=|B|` and their directions are arbitrary
Text Solution
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The correct Answer is:
D
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