A \( x-\frac{x^3}{3!}+\frac{x^5}{5!}-... \)
B \( x+\frac{x^3}{3!}+\frac{x^5}{5!}+... \)
C \( 1+x+\frac{x^3}{3!}+\frac{x^5}{5!}+... \)
D \( -x-\frac{x^3}{3!}+\frac{x^5}{5!}-... \)
Correct Answer: Option B
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