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

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_____

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_____

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_____

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_____

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 xx their product,then the value of c is

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

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