- 04/28/2019 at 10:01 am #683631EduGorillaKeymasterSelect Question Language :
Directions: The following question contains 4 choices (A), (B), (C) and (D), out of which ONLY ONE is correct.
Let, , be unit vectors such that + + = . Which one of the following is correct?
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- × = ×=× =
- × = ×=× ≠
- × = ×= × ≠
- ×, ×, × are mutually perpendicular
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