Q : 3 Find the equations of the lines, which cut-off intercepts on the axes whose sum and product are and , respectively.
Q : 18 If is the length of perpendicular from the origin to the line whose intercepts on
the axes are and , then show that .
Q : 17 In the triangle with vertices , and , find the equation and length of altitude from the vertex .
Q : 16 If and are the lengths of perpendiculars from the origin to the lines and , respectively, prove that .
Q : 15 The perpendicular from the origin to the line meets it at the point . Find the values of and .
Q : 12 Two lines passing through the point intersects each other at an angle of . If slope of one line is , find equation of the other line.