We note that there are a difference of '9' between terms . Hence '9n'
Next find the constant 'c'
1st term ; 9(1) + c = 20 => c = 11
2 nd term ; 9(2) + c = 29 => c = 11
nth term is 9n + 11
e.g.
7th term is 9(7) + 11 = 63 + 11 = 74
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[ 6n + 8 ] is.
The nth term of the sequence is (n + 1)2 + 2.
The 'n'th term is [ 13 + 5n ].
The 'n'th term is [ 13 + 5n ].
If the term number is n, then the nth term is 10(n-1) +8.