Write the first five term of the sequence whosenth term is an=nn2+54.
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Solution
Substituting n=1,2,3,4,5, we obtain a2=1.12+54=64=32 a2=2.22+54=2.94=92 a3=3.32+54=3.144=212 a4=4.42+54=21 a6=5.52+54=5.304=752 Therefore,
the required terms are 32,92,212,21and752