Sumas Notables Flashcards

1
Q

numeros naturales 1+2+3…+n

A

n(n+1) / 2

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2
Q

numeros pares 2+4+6…+2n

A

n(n+1)

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3
Q

numeros impares 1+3+5…+2n-1

A

n al cuadrado

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4
Q

termino enesimo

A

t1 + (n-1) . r

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5
Q

suma de los terminos de una progresion aritmetica

A

t1+tn / 2 . n

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6
Q

M+S+D

A

2M

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7
Q

sustraccion abc - cba = zxy

A

z+y = 9 x= 9 a-c = z - 1

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8
Q

inexacta

A

D= d.q

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9
Q

inexacta por defecto

A

D= d.q + r

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10
Q

residuo maximo - minimo

A

d-1 — 1

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