Respuesta:
1684
Explicación paso a paso:
S = 1 + 2 – 3 + 4 + 5 – 6 + 7 + 8 – 9 + … + 97 + 98 – 99 + 100
agrúpalos de a 3:
S = 0 + 3 + 6 + ... + 96 + 100
S = 3 + 6 + ... + 96 + 100
S = 3 ( 1 + 2 + ... 32) + 100
S = 3 x 32(33)/2 + 100
S = 1584 + 100
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Respuesta:
1684
Explicación paso a paso:
S = 1 + 2 – 3 + 4 + 5 – 6 + 7 + 8 – 9 + … + 97 + 98 – 99 + 100
agrúpalos de a 3:
S = 0 + 3 + 6 + ... + 96 + 100
S = 3 + 6 + ... + 96 + 100
S = 3 ( 1 + 2 + ... 32) + 100
S = 3 x 32(33)/2 + 100
S = 1584 + 100