Arithmetic And Geometric Progressions
Akopọ
Some sequences grow by adding the same amount each time; others grow by multiplying by the same factor. The first are arithmetic progressions, the second are geometric progressions, and together they describe an enormous range of patterns, from stacking chairs to compound interest to a bouncing ball.
In this lesson you will learn the formulas for the nth term and the sum of both kinds of progression, and the elegant sum to infinity of a geometric series when the common ratio is small enough. These compact formulas let you jump straight to the 100th term or the total of hundreds of terms without listing them all.
Awọn Afojusun
- Recognise arithmetic and geometric progressions and understand the difference between them.
- Use the formulas for the nth term and the sum of the first n terms, and the sum to infinity of a convergent geometric progression.
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Ṣí àwòrán ọpọlọ nínú áàpù
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Oriire fun ipari ẹkọ lori Arithmetic And Geometric Progressions. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- For the AP 3, 7, 11, 15, ..., what is the 10th term? A. 35 B. 39 C. 40 D. 43 Answer: B
- For the AP 3, 7, 11, 15, ..., what is the sum of the first 10 terms? A. 195 B. 200 C. 210 D. 220 Answer: C
- For the GP 2, 6, 18, 54, ..., what is the 5th term? A. 108 B. 144 C. 162 D. 216 Answer: C
- For the GP 2, 6, 18, ..., what is the sum of the first 5 terms? A. 162 B. 200 C. 242 D. 486 Answer: C
- What is the sum to infinity of 8, 4, 2, 1, ...? A. 8 B. 12 C. 16 D. infinite Answer: C
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
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Awọn Iwe Itọsọna Ti a Gba Nimọran
Ẹ̀kọ́ síwájú láti àwọn orísun ṣíṣí
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Abala ìwé ẹ̀kọ́
Series and Their Notations
Use summation notation.
"Algebra and Trigonometry: Series and Their Notations" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/algebra-and-trigonometry/pages/13-4-series-and-their-notations. Access for free at https://openstax.org/books/algebra-and-trigonometry/pages/1-introduction
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Abala ìwé ẹ̀kọ́
Arithmetic Sequences
Find the common difference for an arithmetic sequence.
"Algebra and Trigonometry: Arithmetic Sequences" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/algebra-and-trigonometry/pages/13-2-arithmetic-sequences. Access for free at https://openstax.org/books/algebra-and-trigonometry/pages/1-introduction
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