Find the infinite sum accurate to three decimal places.
-$$\sum _ { n = 1 } ^ { \infty } ( - 1 ) ^ { n + 1 } \frac { 1 } { ( 2 n ) ! }$$
A) -0.859
B) 0.859
C) -0.320
D) 0.460

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The Answer of Find the infinite sum accurate to three decimal places.
-$$\sum _ { n = 1 } ^ { \infty } ( - 1 ) ^ { n + 1 } \frac { 1 } { ( 2 n ) ! }$$
A) -0.859
B) 0.859
C) -0.320
D) 0.460

Find the Infinite Sum Accurate to Three Decimal Places ∑n=1∞(−1)n+11(2n)!\sum _ { n = 1 } ^ { \infty } ( - 1 ) ^ { n + 1 } \frac { 1 } { ( 2 n ) ! }n=1∑∞​(−1)n+1(2n)!1​

Find the Infinite Sum Accurate to Three Decimal Places $\sum _ { n = 1 } ^ { \infty } ( - 1 ) ^ { n + 1 } \frac { 1 } { ( 2 n ) ! }$