Practicing Success
Practicing Success
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The number of vectors of unit length perpendicular to the vectors $\hat a =\hat i +\hat j$ and $\hat b =\hat j +\hat k$, is |
1 2 4 Infinite |
2 |
Required vectors are given by $±\frac{\vec a×\vec b}{|\vec a×\vec b|}$ Hence, there are two vectors. |
