13. Through the point A(1,5) is drawn a line parallel to the x-axis to meet at B the line PQ whose equation is 3y = 2x - 5. Find the length of AB and the sine of the angle between PQ and AB ; hence show that the length of the perpendicular from A to PQ is 18/13. Caleulate the area of the triangle formed by PQ and the axes. (ans.:9,2/N13,25/12)

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