30th term of the sequence 1/3, 1, 2/3
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a=1/3 d=1-1/3=2/3
an=a+(n-1)d
a30=1/3+(30-1)2/3
a30=1/3+(29)2/3
a30=1/3+58/3
a30=59/3
an=a+(n-1)d
a30=1/3+(30-1)2/3
a30=1/3+(29)2/3
a30=1/3+58/3
a30=59/3
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