Question

the formula for the nth term of a sequence of numbers is 1/2n(n+1) the first term of this sequence is 1. Use the formula to write down the next three terms of this sequence.

Answer 1

1/2 * 1 * (1 + 1) = 1
1/2 * 2 * (2 + 1) = 3
1/2 * 3 * (3 + 1) = 6
1/2 * 4 * (4 + 1) = 10
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