The angle between the lines joining the origin to the points of intersection of $x+2 y+1=0$ and $2 x^2-2 x…

The angle between the lines joining the origin to the points of intersection of $x+2 y+1=0$ and $2 x^2-2 x y+3 y^2+2 x-y-1=0$ is
  1. $\frac{\pi}{4}$
  2. $\frac{\pi}{3}$
  3. $\frac{\pi}{2}$
  4. $\frac{\pi}{6}$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2017 (24 Apr Shift 2)

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