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| 1. |
Find the unit vector for the vector =2i - j+2k |
| Answer» TION:Ans: GIVEN a=2i-j+2k b=-i+j-ka+b=(2i-j+2k)+(-i+j-k)=i+kMOD(a+b)=SQRT(1^2+1^2)=SQRT(2)So UNIT VECTOR in the DIRECTION of a+b=(a+b)/MOD(a+b)= i+k/SQRT(2) | |