Q14Short answer
If a 1 , a 2 , a 3 , ..., a r are in G.P., then prove that the determinant ar +1 ar + 5 ar + 9 ar + 7 ar +11 ar +15 is independent of r. ar +11 ar +17 ar + 21
If a 1 , a 2 , a 3 , ..., a r are in G.P., then prove that the determinant ar +1 ar + 5 ar + 9 ar + 7 ar +11 ar +15 is independent of r. ar +11 ar +17 ar + 21