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

The angle between the pari of lines represented by x^(2)-7xy+12y^(2)=0 is :

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

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

If the angle between the lines represented by 2x^2+5xy+3y^2+7x+13y-3=0 is tan^(-1) (m) , then m is equal to

The acute angle theta between the lines represented by 2x^(2)+7xy+3y^(2)=0 is

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

The acute angle between the line represented by 2x^(2)-xy-3y^(2)-6x+19y-20=0 is

The acute angle between the line represented by 2x^(2)+xy-y^(2)+x+4y-3=0 is