n cube + n+1 cube +n+2 cube is a multiple of 9 by mathematical induction Share with your friends Share 0 Anuradha Sharma answered this Dear Student, Therefore, by PMI ,P(n) is true for all n N. Regards 1 View Full Answer Ram answered this Please check your question.What do we need to find in that question? 0 Sayanee Mukherjee answered this I am really sorry it is asked to proof by mathematical induction n cube + n+1 cube +n+2 cube is a multiple of 9 0