Posted by **Jon** on Saturday, December 15, 2007 at 6:43pm.

In an induction proof of the statement 4+7+10+...+(3n-1)=n(3n+5)/2

the first step is to show that the statement is true for some integers n.

Note:3(1)+1=1[3(1)+5]/2 is true. Select the steps required to complete the proof.

A)Show that the statement is true for any real number k. Show that the statement is true for k+1.

B)Assume that the statement is true for some positive integer k. Show that the statement is true for k+1.

C)Show that the statement is true for some positive integers k. Give a counterexample.

D)Assume thst the statement is true for some positive integers k+1. Show that the staement is true for k.

I don't know

Thank you SO much for helping me. I'm not looking for anyone to give me the answer because Ive done the work and what ever I answered is my BEST answer and I can't afford to get them wrong so thanks for all your help from the bottom of my heart.

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