3n The two convergent subsequences of the sequence (−1)³¹ +2 is = a) x₁ = (-1)" +2 and x [(-1)] +2 b) X₁, =(−1)³" +2 and x₁,3 = [(-1)³ ]²™** +2 би X2n-1 3n 2n+1 c) x₂n = (-1)³¹ +2 and X2n-1 = (−1)²¹+¹ +2 3n d) x₂n =(−1)³¹ +2 and x2n-1 =(−1)²¹ +2 2n

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