The angle between the lines `x/a+y/b=1` and `x/a-y/b=1` will be:

Show that the tangent of an angle between the lines x/a+y/b=1 and x/a-y/b=1\ i s(2a b)/(a^2-b^2)

The angle between the lines x=a and y=b is -

Show that the tangent of an angle between the lines x/a+y/b=1 and x/b-y/b=1\ i s(2a b)/(a^2-b^2)

If theta is the angle between the lines x/a+y/b=1 and x/b+y/a=1 find the value of sin theta . when a gtb .

What is the angle between the lines x+y=1 and x-y=1 ?

Show that the tangent of an angle between the lines (x)/(a)+(y)/(b)=1 and (x)/(a)-(y)/(b)=1 and (2ab)/(a^(2)-b^(2)) .

Show that the tangent of an angle between the lines (x)/(a)+(y)/(b)=1 and (x)/(a)-(y)/(b)=1 and (2ab)/(a^(2)-b^(2)) .

The angle between the line x=1=y=2 =z/1 and x/1=y=-1= z=0 is