If `theta` is the angle between the lines `x/a+y/b=1,x/b+y/a=1,` then `costheta`

If theta is the angle between the lines x//a+y//b=1, x//b+y//a=1 , then cos theta=

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 .

If theta is the angle between the lines (x)/(a)+(y)/(b)=1,(x)/(b)+(y)/(a)=1, then cos theta

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

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

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

If (theta) is an acute angle between the lines y=2x+3,y=x+1 then the value of tan theta=

If theta is the angle between the curves y=x^2,x=y^2 at (1,1), than tan theta =