gdbhardrive
gdbhardrive
06-10-2016
Mathematics
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What is the 30th term of 3n-1
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makapayne10121998
makapayne10121998
06-10-2016
a_n = a_1 + (n-1)d
a_n = 4 + 3(n-1) = 3n + 1
So the 30th term is a_30 = 3*30 + 1 = 91
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