MCQOPTIONS
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| 1. |
Let \[{{\vec{r}}_{1}},{{\vec{r}}_{2}},{{\vec{r}}_{3}},.....{{\vec{r}}_{n}},\] be the position vectors of points \[{{P}_{1}},{{P}_{2}},{{P}_{3}},....,{{P}_{n}}\] relative to the origin O. If the vector equation \[{{a}_{1}}{{\vec{r}}_{1}}+{{a}_{2}}{{\vec{r}}_{2}}+....+{{a}_{n}}{{\vec{r}}_{n}}=0\] holds, then a similar equation will also hold w.r.t. to any other origin provided |
| A. | \[{{a}_{1}}+{{a}_{2}}+....+{{a}_{n}}=n\] |
| B. | \[{{a}_{1}}+{{a}_{2}}+....+{{a}_{n}}=1\] |
| C. | \[{{a}_{1}}+{{a}_{2}}+....+{{a}_{n}}=0\] |
| D. | \[{{a}_{1}}={{a}_{2}}={{a}_{3}}=....={{a}_{n}}=0\] |
| Answer» D. \[{{a}_{1}}={{a}_{2}}={{a}_{3}}=....={{a}_{n}}=0\] | |