If the sum of slopes of the lines given by `3x^(2)+kxy-9y^(2)=0` is 5 times their product, then k=

If the sum of the slopes of the lines given by 3x^(2)-2cxy-5y^(2)=0 is twice their product, then the value of c is

If the sum of the slopes of the lines given by x^(2)+2cxy-y^(2)=0 is four times their product, then c has the value

If the sum of the slopes of the lines given by x^(2)+2cxy-y^(2)=0 is four times their product, then c has the value

The sum of the slopes of the lines given by 3x^(2)+5xy-2y^(2)=0 is

The sum of the slopes of the lines given by 3x^(2)+5xy-2y^(2)=0 is

If the sum of the slopes of the lines given by x^(2)-2cxy-7y^(2)=0 is four times their product, then 'c' has the value

If the sum of the slopes of the lines given by x^(2)-2cxy-7y^(2)=0 is four times their product then c has the value

If the sum of the slopes of the lines given by 2x^(2)+kxy-3y^(2)=0 is equal to their product, then k=

If the sum of the slopes of the lines given by x^2-2c x y-7y^2=0 is four times their product, then the value of c is_____