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Write the Sum Using Summation Notation x21+x42+x66+x824+x10120\frac { x ^ { 2 } } { 1 } + \frac { x ^ { 4 } } { 2 } + \frac { x ^ { 6 } } { 6 } + \frac { x ^ { 8 } } { 24 } + \frac { x ^ { 10 } } { 120 }

Question 149

Multiple Choice

Write the sum using summation notation.
- x21+x42+x66+x824+x10120\frac { x ^ { 2 } } { 1 } + \frac { x ^ { 4 } } { 2 } + \frac { x ^ { 6 } } { 6 } + \frac { x ^ { 8 } } { 24 } + \frac { x ^ { 10 } } { 120 }


A) i=15x2ii!\sum _ { i = 1 } ^ { 5 } \frac { x ^ { 2 i } } { i ! }
B) i=04x2ii!\sum _ { i = 0 } ^ { 4 } \frac { x ^ { 2 i } } { i ! }
C) i=15x2i2i1\sum _ { i = 1 } ^ { 5 } \frac { x ^ { 2 i } } { 2 ^ { i - 1 } }
D) i=04x2i(i+1) !\sum _ { i = 0 } ^ { 4 } \frac { x ^ { 2 i } } { ( i + 1 ) ! }

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