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Function

Authored by D F

Mathematics

11th Grade

Used 53+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A = {a, b}

B = {1, 2}

A × B เท่ากับข้อใด

{(a, b), (1, 2)}

{(a, 1), (a, 2),

(b, 1), (b, 2)}

{(1, a), (1, b),

(2,a), (2, b)}

{(a, 1), (b, 2)}

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A = {a, b, c}

B = {1, 2, 3}

A × B มีจำนวนสมาชิกเท่ากับเท่าใด

3

4

6

9

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A = {1, 2}

B = {3, 4, 5, 6}

n(A × B) = ?

6

8

10

12

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A = {3, 5}

B = {∅}

B × A = ?

{(∅, 3), (∅, 5)}

{(3, ∅), (5, ∅)}

{∅}

5.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

A = {4, 5, 6, 7, 8}

B = {8, 10, 12, 14, 15, 24}

จงหา r เป็นความสัมพันธ์ "มากกว่า" จาก A ไป B

(a)  

6.

FILL IN THE BLANKS QUESTION

45 sec • 1 pt

r1 = {(2, 3), (4, 1), (5, 2), (6, 2)}

เป็นฟังก์ชันหรือไม่

(ตอบ Y or N)

(a)  

7.

FILL IN THE BLANKS QUESTION

45 sec • 1 pt

r2 = {(2, 5), (5, 7), (0, 1), (5, 2)}

เป็นฟังก์ชันหรือไม่

(ตอบ Y or N)

(a)  

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