If `theta` is the acute angle between the pair of lines `5x^2-8xy-y^2=0` then find `cos theta`

If theta is the acute angle between the pair of the lines x^(2)+3xy4y^(2)=0 then sin theta=

If theta is the acute angle between the lines given by x^(2)-2pxy+y^(2)=0 , then

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

If theta is the acute angle butween the pair of lines represented by 3x^(2)-8xy+4y^(2)=0 then (2cos theta+3sin theta)/(4sin theta+5cos theta) is

11.The acute angle between the pair of lines x^(2)+2xy cot theta+y^(2)=0 is

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

If theta is the acute angle between the lines represented by kx^(2)-4xy+y^(2)=0 and tantheta=(1)/(2) , then k=

If theta is the acute angle between the lines given by ax^(2) + 2hxy + by^(2) = 0 then prove that tan theta = |(2 sqrt (h^(2) - ab))/(a + b)| . Hence find acute angle between the lines 2x^(2) + 7xy + 3y^(2) = 0

If the angle theta is acute, then the angle between the pair of lines given by (costheta-sintheta)x^(2)+2(costheta)xy+(costheta+sintheta)y^(2)=0 is