a2n-1-1 is divisible by a-1, prove by PMI. Share with your friends Share 4 Krish Arora answered this a^2n-1-1 is divisible by a-1 -6 View Full Answer Kittu answered this 3^4n+1+2^2n+2 is divisible by 7 0 Pratham Kapoor answered this Here is the Required Answer.... ------- Pratham Kapoor -1 Shanujam Maddison answered this Here is your answer: -1
