Trắc nghiệm 11

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Mathematics

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1st Grade

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Nguyễn Ngọc Huy

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5 Slides • 2 Questions

Trắc nghiệm 11

Giáo viên: Nguyễn Ngọc Huy

Định Nghĩa

Cho hai dãy số sau:
Củng cố

Cho hai dãy số sau:

Cho hai dãy số sau:

1. Dãy hữu hạn: 1, – 2, 4, – 8, 16, – 32, 64.
2. Dãy vô hạn: 3, 9, 27, …, $3^n$ ,....
Tìm quy luật của hai dãy số trên ?

Multiple Choice

Dãy số nào sau đây là một cấp số nhân?

1;2;4;6;8

1;2;4;8

1;2;3;4;5

1;4;7;10

Multiple Choice

Số hạng tổng quát của một cấp số nhân công bội q là:

$u_n=\ u_1.q^n$

$u_n=u_1q^n\ ^{-1}$

$u_n=u_1+\left(n-1\right)q$

$u_n=\ nu_1q$

Trắc nghiệm 11

Giáo viên: Nguyễn Ngọc Huy

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