Given that , two of the three vectors are equal in magnitude. The magnitude of the…

MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

Given that p+q+r=0\mathbf{p}+\mathbf{q}+\mathbf{r}=0, two of the three vectors are equal in magnitude. The magnitude of the third vector is 2\sqrt{2} times that of the other two. Which of the following can be the angles between these vectors? (1) 90∘,135∘,135∘90^\circ,135^\circ,135^\circ (2) 45∘,45∘,90∘45^\circ,45^\circ,90^\circ (3) 30∘,60∘,90∘30^\circ,60^\circ,90^\circ (4) 45∘,90∘,135∘45^\circ,90^\circ,135^\circ

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