Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Vector Algebra Scalar and Vector Product
Determine the angle between the pair of lines given by
\(\vec{r}=3 \hat{\imath}+2 \hat{\jmath}-4 \hat{k}+\lambda(2 \hat{\imath}+2 \hat{\jmath}+\hat{k})\)
And \(\vec{r}=5 \hat{\imath}-2 \hat{\jmath}+\mu(6 \hat{\imath}+2 \hat{\jmath}+3 \hat{k})\)
1
cos-1 (\(\frac {21}{19}\))
2
cos-1 (\(\frac {17}{23}\))
3
cos-1 (\(\frac {19}{21}\))
4
More than one of the above
5
None of the above