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Recent questions tagged multiplication-by-a-scalar

If $P$ is point whose position vector is $\overrightarrow r=x\hat i+y\hat j+z\hat k$ where $x,y,z \in N$ and $\overrightarrow a=\hat i+\hat j+\hat k$, then the number of possible points $P$ for which $\overrightarrow r.\overrightarrow a=10$ is ?

asked Jan 7, 2014 by rvidyagovindarajan_1

1 answer

If $\overrightarrow a$ is a non zero vector with magnitude $a$ and $\lambda a$ is a non zero scalar then $\lambda\overrightarrow a$ is a unit vector if $\lambda=?$

asked Oct 28, 2013 by rvidyagovindarajan_1

1 answer

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