If a, b and c are in A.P, a, x, b are in G.P. whereas b, y and c are also in G.P. Show that : x2, b2, y2 are in A.P.
If a,b,c are in A.P., a,x,b are in GP and b,y,c are also in G.P, then x2,b2,y2 are in AP.