高三數學知識點概念複習2

高三數學知識點概念複習2

12th Grade

23 Qs

quiz-placeholder

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高三數學知識點概念複習2

高三數學知識點概念複習2

Assessment

Quiz

Mathematics

12th Grade

Practice Problem

Medium

Created by

sio iris

Used 4+ times

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23 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若 a > b 且 c < 0,則下列何者正確?

ac > bc

a + c < b + c

ac < bc

a/c > b/c

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

方程式 x² - 4x + k = 0 有相等實根,則 k 的值為?

2

4

-4

0

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

函數 f(x) = √(3x - 6) 的定義域 (domain) 是?

x ≥ 2

x > 2

x ≤ 2

x < 2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若 log₂ 3 = a,則 log₂ 18 = ?

a + 1

2a + 1

a + 2

3a

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

在坐標平面上,點 (2, 3) 關於直線 y = x 的對稱點是?

(3, 2)

(-2, -3)

(-3, -2)

(2, -3)

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

已知等比數列的首項為 3,公比為 2,則第 5 項為?

24

30

36

48

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若 sin θ = 3/5 且 θ 為第二象限角,則 cos θ = ?

4/5

-4/5

3/4

-3/4

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