Find the angle between the pair of straight lines `x^(2) - 3xy +2y^(2) = 0`

Findthe angle between the pair of straight lines x^2 -4y^2+3xy = 0

The angle between the pair of straight lines x^(2)-y^(2)-2y-1=0 is

The angle between the pair of straight lines x^(2)-y^(2)-2y-1=0 is

Findthe angle between the pair of straight lines x^2 -4y^2+3x - 4 = 0

The angle between the pair of straight lines x^(2)+4y^(2)-7xy=0 is

The angle between the pair of straight lines x^(2)+4y^(2)-7xy=0 is

Find the angle between the pair of straight lines given by (a^(2)-3b^(2))x^(2)+8ab xy+(b^(2)-3a^(2))y^(2)=0

The angle between the pair of straight lines 2x^2+5xy+2y^2+3x+3y+1=0 is

Angle between the pair of straight lines x^(2) - xy - 6y^(2) - 2x + 11y - 3 = 0 is