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| 1. |
[hati hatk hatj]+[hatk hatj hati]+[hatj hatk hati] is equal to |
| Answer» SOLUTION :`[HAT(i)hat(k)hat(J)]+[hat(k)hat(j)hat(i)]+[hat(j)hat(k)hat(i)]=[hat(i)hat(k)hat(j)]+[hat(i)hat(k)hat(j)]-[hat(i)hat(k)hat(j)]=[hat(i)hat(k)hat(j)]=hat(i).(hat(k)xxhat(j))=hat(i).(-hat(i))=-1` | |