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Question

Find the 20th term of the sequence whose nth term is an=n(n−2)n+3.

A
26023
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B
36023
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C
24023
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D
35023
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Solution

The correct option is B 36023
an = n(n2)n+3
Putting n=20, we obtain a20 = 20(202)20+3
Thus a20 = 36023

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