Mathematics (9-1) - 0980 CIE

Sets

Akopọ

A set is simply a collection of things, and once you have a precise way to talk about collections you can describe almost anything in mathematics: the factors of a number, the solutions of an equation, the students who study both French and Spanish. Sets give you the exact language, and Venn diagrams give you the picture.

In this lesson you will learn the symbols mathematicians use for sets, how to read and write them, and how to draw and interpret Venn diagrams. You will work with the union and intersection of sets, the complement of a set, and (for Extended) the relationships between sets such as subsets. These tools reappear later in probability, so they are well worth mastering.

Awọn Afojusun

  1. Understand and use set language, notation and Venn diagrams to describe sets.
  2. Understand and use set language, notation and Venn diagrams to describe sets and represent relationships between sets. (Extended only)

Akọ̀wé Ẹ̀kọ́

Sorting things into groups and asking what they have in common is one of the most natural things we do. Set notation makes that precise, and the same diagrams you meet here are used directly in probability to organise outcomes. A little fluency with the symbols goes a long way.

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

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Ìdánwò Ẹ̀kọ́

Oriire fun ipari ẹkọ lori Sets. 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.

  1. If A = {1, 2, 3, 4} and B = {3, 4, 5, 6}, what is A ∩ B? A. {1, 2, 5, 6} B. {3, 4} C. {1, 2, 3, 4, 5, 6} D. { } Answer: B
  2. If A = {1, 2, 3, 4} and B = {3, 4, 5, 6}, what is A ∪ B? A. {3, 4} B. {1, 2, 5, 6} C. {1, 2, 3, 4, 5, 6} D. {1, 2, 3, 4, 4, 5, 6} Answer: C
  3. The universal set is {1,2,3,4,5,6,7,8} and A = {2,4,6,8}. What is A'? A. {1, 3, 5, 7} B. {2, 4, 6, 8} C. {1,2,3,4,5,6,7,8} D. { } Answer: A
  4. Which symbol means 'is an element of'? A. ⊆ B. ∪ C. ∈ D. ∩ Answer: C
  5. If A = {2, 4} and B = {1, 2, 3, 4, 5}, which statement is true? A. A ∪ B = {2, 4} B. A ⊆ B C. B ⊆ A D. A ∩ B = { } Answer: B

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

Awọn akọsilẹ ẹkọ ni kikun pẹlu awọn aworan apejuwe
Oluranlọwọ ẹkọ ti AI ṣe agbara rẹ
Kọ ẹkọ laisi intanẹẹti, nigbakugba, nibikibi
O wa lori Android, Windows, macOS, ati Linux

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

Awọn akọsilẹ ẹkọ ni kikun pẹlu awọn aworan apejuwe
Oluranlọwọ ẹkọ ti AI ṣe agbara rẹ
Kọ ẹkọ laisi intanẹẹti, nigbakugba, nibikibi
O wa lori Android, Windows, macOS, ati Linux

Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe

Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Sets? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.

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