1.If the sum of first n terms of an AP is cn^2, then the sum of squares of these n terms isa.n(4n^2-1)c^2/6b.n(4n^2+1)c^2/3c.n(4n^2-1)c^2/3d.n(4n^2+1)c^2/6Login to continueOnly logged in users canattempt or see the solution.
