Suseción Aritmética Flashcards

1
Q

Hallar “an” de una P. A. Si a1 = 4 y d = 5

A

an = 5n - 1

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2
Q

Hallar “an” de una P. A. Si a1 = 6 y d = 3

A

an = 3n + 3

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3
Q

Hallar “an” de una P. A. Si a5 = 40 y a20 = 100

A

an = 4n + 20

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4
Q

Hallar “an” de una P. A. Si a4 = 31 y a10 = 85

A

an = 9n - 5

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5
Q

Sumar los primeros 30 términos de una P. A. Si a1 = 5 y d = 4

A

1890

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6
Q

Sumar los primeros 40 números pares naturales.

A

1640

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