A = {a, b}
B = {1, 2}
A × B เท่ากับข้อใด
Function
Quiz
•
Mathematics
•
11th Grade
•
Medium
D F
Used 53+ times
FREE Resource
10 questions
Show all answers
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 BLANK 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
6.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
r1 = {(2, 3), (4, 1), (5, 2), (6, 2)}
เป็นฟังก์ชันหรือไม่
(ตอบ Y or N)
7.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
r2 = {(2, 5), (5, 7), (0, 1), (5, 2)}
เป็นฟังก์ชันหรือไม่
(ตอบ Y or N)
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