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| 1. |
Given that X \[\vec{A}\,+\vec{B}+\vec{C}\]= 0, out of three vectors two are equal in magnitude and the magnitude of third vector is \[\sqrt{2}\] times that of either of two having equal magnitude. Then, angle between vectors are given by |
| A. | \[30{}^\circ ,\text{ }60{}^\circ ,\text{ }90{}^\circ \] |
| B. | \[45{}^\circ ,\text{ }45{}^\circ ,\text{ }90{}^\circ \] |
| C. | \[90{}^\circ ,\text{ }135{}^\circ ,\text{ }45{}^\circ \] |
| D. | \[90{}^\circ ,\text{ }135{}^\circ ,\text{ }135{}^\circ \] |
| Answer» E. | |