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## Answers

tn= a+(n-1)d

=a+dn-d

that means, it's always a 1st degree equation.thus,n^2+2 can never be the nth term of an AP.

.............................hence the proof.......................................

Log in to add a comment

tn= a+(n-1)d

=a+dn-d

that means, it's always a 1st degree equation.thus,n^2+2 can never be the nth term of an AP.

.............................hence the proof.......................................