Find the acute angle between the pair of lines represented by `x(cosalpha-ys inalpha)^2=(x^2+y^2)sin^2alpha`

Find the acute angle between the pair of lines represented by x(cos alpha-y sin alpha)^(2)=(x^(2)+y^(2))sin^(2)alpha

The angle between the pair of lines represented by 2x^2-7xy+3y^2=0 is

The acute angle between the lines represented by x^(2) + xy = 0 is….

The angle between the lines represented by x^(2)-y^(2)=0 is

The angle between the pair of lines represented by (sin^(2)alpha)(x^(2)+y^(2))=(xcosalpha-ysinalpha)^(2) is

The acute angle between the lines represented by 6x^(2)-xy-y^(2)=0 is

The acute angle between the lines represented by x^(2)-2(cos ec)xy+y^(2)=0 is

Find the angle between the lines represented by 3x^2 + 4xy-3y^2 = 0

The acute angle between the lines represented by x^(2)+2sqrt(2)xy-y^(2)=0 is

Acute angle between the lines represented by 3x^(2)-48xy+23y^(2)=0 is