I have attached the question.
I have attempted this question from many angles yet I havn't been successful.
I would like some help on this.
I tried proving it with induction.
First case: then we need to prove:
This is true because
Suppose the statement is true for (induction hypothesis), we accept
Proving the statement for , we obtain:
(add a factor in the numerator and the denominator)
This is what we wanted to prove.