A) 69
B) 71
C) 82
D) 89
E) None of these
Correct Answer: C
Solution :
Explanation Option (c) is correct. Series increases and decreases alternatively with a difference of \[+{{(1)}^{2}},-{{(1)}^{3}},+{{(2)}^{2}},-{{(2)}^{3}},+{{(3)}^{2}},{{(3)}^{3}}\,\,i.e.,\,\,1,1,4,8,9,27.\]
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