1.

Find the value of S=\(\sum_{n=1}^\infty \frac{(-1)^{n+1} \times (2n-1)^3}{(2n-1)!}\) using nth derivatives.

A. – 2 * sin(1)
B. 3 * sin(1)
C. 3 * cos(1)
D. – 3 * cos(1)
Answer» B. 3 * sin(1)


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