Hola
a)
La potencia de -1 sirve para alternar el signo
S = 1^2 - 3^2 + 5^2 - 7^2 + 9^2
S = 1 - 9 + 25 - 49 + 81
S = -8 - 24 + 81
S = 49
**********
b)
S = 2^2/1 - 2^3/2 + 2^4/3 - 2^5/4
S = 4/1 - 8/2 + 16/3 - 32/4
S = 4 - 4 + 5 + (1/3) - 8
S = -3 + (1/3)
S = -8/3
**************
si me das tu culo
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Verified answer
Hola
a)
La potencia de -1 sirve para alternar el signo
S = 1^2 - 3^2 + 5^2 - 7^2 + 9^2
S = 1 - 9 + 25 - 49 + 81
S = -8 - 24 + 81
S = 49
**********
b)
S = 2^2/1 - 2^3/2 + 2^4/3 - 2^5/4
S = 4/1 - 8/2 + 16/3 - 32/4
S = 4 - 4 + 5 + (1/3) - 8
S = -3 + (1/3)
S = -8/3
**************
si me das tu culo