18,2,2/9............... pls guys the equation above represent a series, have tried to obtain the nth term but no avail, can any help me here. appreciate!
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Originally Posted by lawochekel 18,2,2/9............... pls guys the equation above represent a series, have tried to obtain the nth term but no avail, can any help me here. appreciate! $\displaystyle a_n=2 \cdot 9^{(2-n)}$
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