If the acute angle between the lines `x^(2)-4hxy+3y^(2)=0` is `60^(@)` then `h=`

If the acute angle between the lines ax^(2) + 2hxy + by^(2) = 0 is 60^(@) , then show that (a+3b)(3a+b) = 4h^(2) .

If the acute angle between the lines ax^(2) + 2hxy + by^(2) = 0 is 60^(@) , then show that (a+3b)(3a+b) = 4h^(2) .

If acute angle between lines x^(2)-2hxy+y^(2)=0 is 60^(@) then h=

If the acute angle between the lines ax^2+2hxy +by^2=0 is 60^@ then show that (a+3b)(3a+b)= 4h^2

The acute angle between the lines (5x-2y)^(2)-3(2x+5y)^(2)=0 is

The acute angle between the lines x^(2)-2 x y sec alpha+y^(2)=0 is

If the acute angle between the lines ax^(2)+2hxy+by^(2)=0 is congruent to the acute angle between the lines 3x^(2)-7xy+4y^(2)=0 , then

If acute angle between lines ax^(2)+2hxy+by^(2)=0 is (pi)/4 , then 4h^(2)=

If theta is the acute angle between the lines 6x^(2)+11xy+3y^(2)=0 ,then tan theta

The acute angle between the lines 3x^(2)+hxy+2y^(2)=0 is of measure (pi)/(4) then the value of h is :