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Which formula gives the nth term of the odd natural numbers 1, 3, 5, ...?
An + 2
B2n
C2n + 1
D2n - 1
Answer & Solution
Correct answer: D. 2n - 1
At n = 1 the formula 2n - 1 gives 1, at n = 2 it gives 3, and so on through the odd numbers.
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