ข้อสอบกลางภาค 2/64 รหัสวิชา ค31202 ชั้น ม.4/1

ข้อสอบกลางภาค 2/64 รหัสวิชา ค31202 ชั้น ม.4/1

10th Grade

20 Qs

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ข้อสอบกลางภาค 2/64 รหัสวิชา ค31202 ชั้น ม.4/1

ข้อสอบกลางภาค 2/64 รหัสวิชา ค31202 ชั้น ม.4/1

Assessment

Quiz

Mathematics

10th Grade

Hard

Created by

nathapong poper

Used 3+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

กำหนดให้ A={0,1}A=\left\{0,1\right\} และ  B={1,2}B=\left\{1,2\right\}  ข้อใดต่อไปนี้ถูกต้อง

 A×B={(0,1),(2,1),(0,2),(1,2)}A\times B=\left\{\left(0,1\right),\left(2,1\right),\left(0,2\right),\left(1,2\right)\right\}  

 B×A={(1,1),(1,0),(2,1),(2,0)}B\times A=\left\{\left(1,1\right),\left(1,0\right),\left(2,1\right),\left(2,0\right)\right\}  

 A×A={(0,1),(1,1),(2,0),(1,0)}A\times A=\left\{\left(0,1\right),\left(1,1\right),\left(2,0\right),\left(1,0\right)\right\}  

 B×B={(1,1),(1,2),(2,2),(2,0)}B\times B=\left\{\left(1,1\right),\left(1,2\right),\left(2,2\right),\left(2,0\right)\right\}  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

กำหนด  A={1,2,3}A=\left\{1,2,3\right\}  ,  B={1,0,1}B=\left\{-1,0,1\right\}  และ  r={(x,y)A×B  xy=2}r=\left\{\left(x,y\right)\in A\times B\ |\ x-y=2\right\}    ข้อใดคือความสัมพันธ์  rr แบบแจกแจงสมาชิก

 r={(1,3),(0,2),(1,1)}r=\left\{\left(1,3\right),\left(0,2\right),\left(-1,1\right)\right\}  

 r={(2,0),(1,2),(3,1)}r=\left\{\left(2,0\right),\left(1,2\right),\left(3,1\right)\right\}  

 r={(3,1),(2,0),(1,1)}r=\left\{\left(3,1\right),\left(2,0\right),\left(1,-1\right)\right\}  

 r={(3,1),(2,0),(1,1)}r=\left\{\left(3,-1\right),\left(2,0\right),\left(1,-1\right)\right\}  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

กำหนด r={(x,y)Z+×Z+  x+y=5}r=\left\{\left(x,y\right)\in Z^+\times Z^{+\ }|\ x+y=5\right\}  ข้อใดต่อไปนี้ ไม่ ถูกต้อง


 Dr={1,2,3,4}D_r=\left\{1,2,3,4\right\}  

 Rr={1,2,3,4}R_r=\left\{1,2,3,4\right\}  

 r=r1r=r^{-1}  

ความสัมพันธ์  rr  ไม่เป็นฟังก์ชัน

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

ความสัมพันธ์ข้อใดต่อไปนี้ไม่เป็นฟังก์ชัน

r={(x,y) y3x=1}r=\left\{\left(x,y\right)|\ y-3x=1\right\}

r={(x,y) y+x2=2}r=\left\{\left(x,y\right)|\ y+x^2=2\right\}

r={(x,y) y2x=0}r=\left\{\left(x,y\right)|\ y^2-x=0\right\}

r={(x,y) y=x1}r=\left\{\left(x,y\right)|\ y=\left|x-1\right|\right\}

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

ฟังก์ชันในข้อใดต่อไปนี้เป็นฟังก์ชันหนึ่งต่อหนึ่ง

f(x)=x2x+2f\left(x\right)=x^2-x+2

g(x)=xx1g\left(x\right)=\frac{x}{x-1}

h(x)=x+1h\left(x\right)=\left|x\right|+1

I(x)=12I\left(x\right)=\frac{1}{2}

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

กำหนด f(x)=xf\left(x\right)=\sqrt{x}  และ  g(x)=x2g\left(x\right)=x^2    ข้อใดต่อไปนี้ ไม่ ถูกต้อง


 f(4)+g(2)=g(3)f(9)f\left(4\right)+g\left(-2\right)=g\left(3\right)-f\left(9\right)  

 (fg)(0)=(gf)(1)\left(f-g\right)\left(0\right)=\left(g-f\right)\left(1\right)  

 fg(3)=gf(3)f\circ g\left(3\right)=g\circ f\left(3\right)  

 g(2)=f1(2)g\left(-2\right)=f^{-1}\left(-2\right)  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

กำหนด f(x)=x+1f\left(x\right)=x+1  , g(x)=1xg\left(x\right)=1-x  ข้อใดต่อไปนี้ ไม่ ถูกต้อง


 (f+g)(x)=2\left(f+g\right)\left(x\right)=2  

 (fg)(x)=(gf)(x)\left(f\circ g\right)\left(x\right)=\left(g\circ f\right)\left(x\right)  

 f1(x)+g1(x)=0f^{-1}\left(x\right)+g^{-1}\left(x\right)=0  

 (fg1)(x)=(gf1)(x)\left(f\circ g^{-1}\right)\left(x\right)=\left(g\circ f^{-1}\right)\left(x\right)  

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