PROGRESSÕES ARITMÉTICAS E GEOMÉTRICAS 1º ADM

PROGRESSÕES ARITMÉTICAS E GEOMÉTRICAS 1º ADM

10th Grade

10 Qs

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PROGRESSÕES ARITMÉTICAS E GEOMÉTRICAS 1º ADM

PROGRESSÕES ARITMÉTICAS E GEOMÉTRICAS 1º ADM

Assessment

Quiz

Mathematics

10th Grade

Practice Problem

Medium

Created by

AURI MOREIRA

Used 21+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

O termo geral de uma PA é dado por:

an= a1 + (n + 1).ra_{n_{ }}=\ a_1\ +\ \left(n\ +\ 1\right).r

an = a1+(n1).ra_n\ =\ a_1+\left(n-1\right).r

an = a1+ 2na_n\ =\ a_{1_{ }}+\ 2n

an = a1 + 2(n1).ra_n\ =\ a_{1\ }+\ 2\left(n-1\right).r

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

No termo  ana_n   de uma sequência a letra n representa

O primeiro termo da sequência.

O termo geral da sequência.

A ordem que o termo ocupa na sequência.

O n-ésimo termo da sequência.

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Observando a PA (1/7, 2/7, 3/7, 4/7, 5/7, ...) ela é classificada como:

Crescente

Constante

Decrescente

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Qual a razão da PA (-1, -7, -13, -19, ...) ?

6

-6

7

-8

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Em relação à progressão aritmética (10, 16, 22, …) o 15º termo é:

94

99

108

122

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Qual das alternativas abaixo apresenta uma PG oscilante ?

(4, 6, 8, 10, 12, ...)

(3, -6, 12, -24, 48, ...)

(9, 0, 0, 0, 0, ...)

(-1, -6, -9, -18, -20, ...)

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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

15

18

20

25

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