3上 3-1 證明與推理

3上 3-1 證明與推理

9th Grade

10 Qs

quiz-placeholder

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3上 3-1 證明與推理

3上 3-1 證明與推理

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

康軒數位 康軒數位

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

2

3

4

5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列關於奇數與偶數的敘述何者錯誤

奇數的平方被4除後餘數必為1

偶數的平方必為4的倍數

偶數的正平方根必為偶數

四個連續整數的和必為偶數

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

150

120

90

60

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

已知: a3為一個偶數,3b為一個奇數。

求證:a2b2為奇數。

證明:(1)∵a3為一個偶數,∴a為偶數

(2)∵3b為一個奇數,∴b為奇數

(3)設a=2m(m是整數),b=2n+1(n是整數)則a2b2  (甲)  

(4)其中(甲)不為2的倍數,∴a2b2為奇數。

請問(甲)應填入下列何者,可得完整證明?

2a+2b

4m+4n+1

4m2+4n2+1

4m2+4n2+4n+1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

欲使用SAS全等,應加條件∠C=∠F,方能使兩個三角形全等

欲使用RHS全等,應加條件∠C=∠F=90°,方能使兩個三角形全等

欲使用RHS全等,應加條件∠A=∠D=90°,方能使兩個三角形全等

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