Question b please

6. (24 pts) Show each of the following at an effective period rate of i. The present value of a perpetuity immediate is equal to the present value of an n period annuity immediate plus the present value of an n period deferred perpetuity. 0 a. b. The accumulated value at time 3n of a 3n period annuity immediate paying 1 at the end of the first n periods, 2 at the end of the 2nd n periods, and 3 at the end of the last n periods is equal to the accumulated value at time 3n of a 3n period annuity immediate paying 1 per period plus a 2n period annuity immediate paying 1 per period starting at time n (so the first payment is at n+1) plus an n period annuity immediate paying 1 per period starting at time 2n (so the first payment is at 2n+1)