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Find the 9th and 10th terms of the sequence $\displaystyle {a}_{{n}}={3}{n}+{1}$ .

The 9th term is
The 10th term is

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Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity

Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity