If the sum of the first p terms of an AP is ap^2 +bp, find its common difference.
Question
- The area of the region describes by {(x,y)}:y^2 is less than or equal to 2x and y>=4x-1}
if the midpoint of the line segment joining the points p(3, b+2) and q(1,4) is (2,-3) find the value of b
