question_answer

Find the angle between the lines \[x+2y=1\]and \[x+4y=2.\]

A) 1         

B)        \[\frac{1}{\sqrt{3}}\]

C) \[{{\tan }^{-1}}\left( \frac{4}{9} \right)\]           

D) \[\sqrt{3}\]

E) None of these