1. กำหนด A = {3, 4}, B = {5, 6, 7} และ C={3, ϕ} ผลลัพธ์ของ A × C มีค่าตรงกับข้อใด

ฟังก์ชันรวมม.5

Quiz
•
Mathematics
•
9th - 12th Grade
•
Hard
Namphung Aphiraksanti
Used 6+ times
FREE Resource
24 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
{(3,3),(4,ϕ)}
{3, 4, ϕ}
{(3,3),(3,ϕ),(4,3),(4,ϕ)}
{3, 3, 4, ϕ}
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2. กำหนด A = {3, 4}, B = {5, 6, 7} และ C = {3, ϕ} ผลลัพธ์ของ n(A × B) มีค่าตรงกับข้อใด
4
6
8
9
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
3. กำหนดให้ r = {(1, 2), (−2, 4), (5, −7)} แล้วโดเมนของ r มีค่าตรงกับข้อใด
{2, 4, −7}
{1, 4,−7}
{1, −2, 5}
{2, −2, 5}
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
4. กำหนดให้ r = {(x, y) ∈ A × A ∣ y = x − 8} เมื่อ A = {0, 1, 2, 3, ..., 9} แล้วโดเมนของ r มีค่าตรงกับข้อใด
{0, 1, 8, 9}
{1, 8, 9}
{1, 0}
{8, 9}
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
5. ความสัมพันธ์ที่กำหนดให้ข้อใด ไม่เป็นฟังก์ชัน
r = {(5,1), (2,2), (7,3), (3,4)}
r = {(1,3), (2,8), (4,7), (7,7)}
r = {(-2,1), (1,3), (7,3), (3,4)}
r = {(1,3), (2,8), (4,7),
(7,4), (2,7)}
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
6. ความสัมพันธ์ r ในข้อใดต่อไปนี้เป็นฟังก์ชัน
r={(x, y)∈R×R∣ y2=x+1}
r={(x, y)∈R×R∣ y=x+5}
r={(x, y)∈R×R∣ x=(y+1)2}
r={(x, y)∈R×R ∣ y2=−x2+1}
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
7. ให้ f เป็นฟังก์ชัน ซึ่งกำหนดให้ f(x) = x + 2 จงหา f(−2)
2
0
1
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