S6 Ch.20 等差數列 Arithmetic Sequence Intro
Presentation
•
Mathematics
•
12th Grade
•
Medium
Yuk Kei Fong
Used 4+ times
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4 Slides • 8 Questions
1
Ch.20 數列 Sequence
7 Sept 2020_FYK
2
Multiple Select
Which of the following is/are Arithmetic Sequence?
以下哪些數列是等差數列?
1,5,9
2,10,16
4,12,20
5,10,20
3
Arithmetic Sequence 等差數列
have a common difference 有公差
d= 後項- 前項
1,5,9 d=4
4,12,20 d=8
No common d:2,10,16
5,10,20
4
Multiple Select
Which of the following is/are Arithmetic Sequence?
以下哪些數列是等差數列?
100, 50, 0, -50
5, 10,15, 20
9,19,29,39
2,22,222,2222
5
Arithmetic Sequence 等差數列
have a common difference 有公差
d= 後項- 前項
100, 50, 0, -50 d=-50
5, 10,15, 20 d=5
9,19,29,39 d= 10
2,22,222,2222 no common d
6
Multiple Choice
Is it arithmetic sequence? 以下是等差數列嗎?
37, 31, 25, 19, ...
Yes
No
7
Multiple Choice
Is it arithmetic sequence?
以下是等差數列嗎?
78, 785, 7855, 78555, ...
Yes
No
8
Multiple Choice
Find the missing term of the arithmetic sequence.
在等差數列中,求橫線的數值。
98, __, 66
82
77
80
I don't know
9
Multiple Choice
Find the common difference:
求公差:
-34, -29, -24, -19, ...
d=6
d=5
d=-5
d=-6
10
Multiple Choice
Find the common difference:
求公差:
29, 21, 13, 5, ...
d=7
d=8
d=-8
d=-7
11
Multiple Choice
Find the common difference:
求公差:
-18, -23, -28, -33, ...
d=5
d=4
d=-4
d=-5
12
Conclusion 總結
AS has common difference which can be found easily by the latter minus the number before.
等差數列有公差, 後項-前項
Ch.20 數列 Sequence
7 Sept 2020_FYK
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