Answers

2014-09-02T22:01:42+05:30
The Formula for the n th term of the sequence is

n^2 + 2n - 1

now the 99th ternm is 
99²+2(99) -1
9801+198-1
9998

the correct answer is option b)9998
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2014-09-02T22:03:45+05:30
2 = 2² - 2
7 = 3² - 2
14 = 4² -2

Hence nth term = (n+1)² - 2

So 99th term = (99+1)² - 2 = 100² - 2 = 9998
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