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jatin

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· 1 Months ago

jatin (Question: 200757.0 )

plz provide detailed soln

Question:
What is the 507th term of the sequence 1, –1, 2, –2, 1, –1, 2, –2, 1, ........? 
Options:
A) -1
B) 1
C) -2
D) 2
Solution:
Ans: (d) Clearly repetition takes place for each set of four terms. Hence, 507th term will be same as 3rd term i.e. 2.

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