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- Given the sequence $−15;−11;−7;…173$. Is this an arithmetic sequence? What is the formula of the general term?
- Given the sequence $−15;−11;−7;…173$
- The n term of a sequence is given by the formula $T_n=6 \times 13^{n−1}$. Write down the first three terms of the sequence.
- Given a geometric sequence with second term 12 and ninth term 64. Determine the value of r. Find the value of a. Determine the general formula of the sequence.
- Determine the general formula for the n term of each of the following geometric sequences: $5;10;20;…$

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