If the direction ratios of two lines are (1, 2, 3) and (-2, 3, -4), Then the angle between the lines is:
1
\(\rm \cos^{-1}\left(\frac{8}{\sqrt{406}}\right)\)
2
\(\rm \cos^{-1}\left(-\frac{8}{\sqrt{406}}\right)\)
3
\(\rm \cos^{-1}\left(-\frac{6}{\sqrt{406}}\right)\)
4
\(\rm \cos^{-1}\left(\frac{6}{\sqrt{406}}\right)\)