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Question

Write the first five terms of the sequence, whose nth term is an=nn+1.

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Solution

Finding sequence.
Given, an=nn+1,nN
Substituing n=1,2,3,4 and 5 in an, we get
a1=11+1a1=12
a2=22+1a2=23
a3=33+1a3=34
a4=44+1a4=45 ;
a5=55+1a5=56

Hence, the first five terms of sequence are 12,23,34,45 and 56.

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