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Find the 31st term of the following sequence. 9, 15, 21, ...
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what do u think
how you think what sequance is this geometric or aritmetic geometric sequance a_n = a*r^(n-1) aritmetic sequance a_n = a_1 +(n-1)d a_n is the nth term a_1 the first term d common difference r common ratio
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