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.


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