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Progressões

Authored by Paula Santos

Mathematics

11th Grade

Used 6+ times

Progressões
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14 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Em relação à progressão aritmética (10, 17, 24, …) o 15º termo é:

98

105

108

122

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calcule a razão da PG (-3, 9, -27, 81,...)

2

-2

3

-3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Para determinar a razão de uma PA, temos:

 r = an1  anr\ =\ a_{n-1}\ -\ a_n  

 r = an1 + an r\ =\ a_{n-1}\ +\ a_n\   

 r = an an1r\ =\ a_{n_{ }}-\ a_{n-1}  

 r = an + an1r\ =\ a_n\ +\ a_{n-1}  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Na PA (-1, -7, -13, -19, ...) a razão é:

6

-6

7

-8

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Encontre o primeiro termo de uma P.A., sabendo que a razão é -2 e o décimo terceiro termo é -15.

39

24

11

9

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Dada a PG (4, a, b, c, d, e, f, g, 100), qual o valor de d ?

15

18

20

25

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Determine a soma dos 10 primeiros termos da PG (1, 3, 9, 27).

29524

25924

39524

49524

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