Find the tangent of the angle between the lines whose intercepts on the axes are respectively a,−b and b,−a

The tngent of angle between the lines whose intercepts on the axes are a, -b and b -a respectively is

Find the tangent of the angle between the lines which have intercepts 3, 4, and 1, 8 on the x and y axes respectively.

Find the angle between the line whose slope are 2 and -1 .

Find the equation of the line whose intercepts on x and y axes are 2 and -3 respectively.

Find the angle between the lines whose direction ratios are proportional a ,b ,c and b-c ,c-a ,a-bdot

Find the angle between the lines whose direction ratios are proportional a ,b ,c and b-c ,c-a ,a-bdot

Find the equation of the straight line whose intercepts on X-axis and Y-axis are respectively twice and thrice of those by the line 3x+4y=12.

If p is the length of perpendicular from the origin to the line whose intercepts on the axes are a and b, then show that 1/(p^2)=1/(a^2)+1/(b^2) .

If p is the length of perpendicular from the origin to the line whose intercepts on the axes are a and b, then show that 1/(p^2)=1/(a^2)+1/(b^2) .

If p is the perpendicualr distance of the origin from the line whose intercepts on the axes are a and b, show that 1/(p^(2))=1/(a^(2))+1/(b^(2))