The angle between the straight lines \[\vec{r}=(2-3t)\vec{i}+(1+2t)\vec{j}+(2+6t)\vec{k}\] and \[\vec{r}=(1+4s)\vec{i}+(2-s)\vec{j}+(8s-1)\vec{k}\]is

\[{{\cos }^{-1}}\left( \frac{\sqrt{41}}{34} \right)\]

\[{{\cos }^{-1}}\left( \frac{21}{34} \right)\]

\[{{\cos }^{-1}}\left( \frac{43}{63} \right)\]

\[{{\cos }^{-1}}\left( \frac{34}{63} \right)\]

The angle between the straight lines \[\vec{r}=(2-3t)\vec{i}+(1+2t)\ve

1.	The angle between the straight lines \[\vec{r}=(2-3t)\vec{i}+(1+2t)\vec{j}+(2+6t)\vec{k}\] and \[\vec{r}=(1+4s)\vec{i}+(2-s)\vec{j}+(8s-1)\vec{k}\]is
A.	\[{{\cos }^{-1}}\left( \frac{\sqrt{41}}{34} \right)\]
B.	\[{{\cos }^{-1}}\left( \frac{21}{34} \right)\]
C.	\[{{\cos }^{-1}}\left( \frac{43}{63} \right)\]
D.	\[{{\cos }^{-1}}\left( \frac{34}{63} \right)\]
Answer» E.

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The angle between the straight lines \[\vec{r}=(2-3t)\vec{i}+(1+2t)\vec{j}+(2+6t)\vec{k}\] and \[\vec{r}=(1+4s)\vec{i}+(2-s)\vec{j}+(8s-1)\vec{k}\]is

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