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| 1. |
If `hat(a), hat(b) and hat(c)` are unit vector inclined to each other at an angle of `pi/3` then the absolute value of `[hat(a)+hat(b) hat(b)+hat(c) hat(c) + hat(a)]` equalsA. `sqrt2`B. `sqrt3`C. `3sqrt2`D. `2sqrt3` |
| Answer» Correct Answer - A | |