Question 1043444
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The nth term of a series is 1/2(2n-1). Write down the (n+1)th term.
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Substitute n+1 into the formula instead of n. You will get

{{{(1/2)*(2*(n+1)-1)}}} = {{{(1/2)*(2n + 2 -1)}}} = {{{(1/2)*(2n+1)}}}.

That's all.
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