Question: 2A. Let ( ) be the real sequence given by letting T := (-1) sin(2:) + for each n E N. Which of the

2A. Let ( ) be the real sequence given by letting T := (-1)" sin(2:) + " for each n E N. Which of the following is the correct value of lim sup, + In? (a) ya (b) 1. (c) . (d) 0. 2B. Let (In ) be the real sequence given by letting In := (-1)" sin(" ) + (" no for each n E N. Which of the following is the correct value of lim info-+co In? (a) -13 (b) (c) (d) 0. 2C. Let (In) be the real sequence given by letting , := (-1)" cos("= ) + 1 for each n E N. Which of the following is the correct value of lim sup, . In? (a) Va (b) 1. (c) . (d) 0. 2D. Let (x,) be the real sequence given by letting In := (-1)" cos(2:) + 1 for each n E N. Which of the following is the correct value of lim info-+co In? (a) (c) (d) 0
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