The value of (n→∞lim[2n2−12n2n−1cos(n+1)−1−2nnn2+1n(−1)n˙]is 1 (b) −1 (c) 0 (d) none of these

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The value of {(_{{{n}}}{[{{{2}{n}}}{{{2}{n}^{{2}}-{1}}}{{{{({n

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The value of $(n \to \infty lim [\frac{2 n}{2 n ^{2} - 1} \frac{cos ( n + 1 )}{2 n - 1} - \frac{n}{1 - 2 n} \frac{n ( - 1 ) ^{n} ˙}{n ^{2} + 1}] i s$ 1 (b) $- 1$ (c) 0 (d) none of these

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The value of

(n \to \infty lim [\frac{2 n}{2 n ^{2} - 1} \frac{cos ( n + 1 )}{2 n - 1} - \frac{n}{1 - 2 n} \frac{n ( - 1 ) ^{n} ˙}{n ^{2} + 1}] i s

1 (b)

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The value of

(n \to \infty lim [\frac{2 n}{2 n ^{2} - 1} \frac{cos ( n + 1 )}{2 n - 1} - \frac{n}{1 - 2 n} \frac{n ( - 1 ) ^{n} ˙}{n ^{2} + 1}] i s

1 (b)

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