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研展周複習(選擇)

Authored by Kangai Fong

Mathematics

9th - 12th Grade

Used 2+ times

研展周複習(選擇)
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列函數中不是冪函數的是

y≡xy\equiv\sqrt[]{x}

y=xy=x

y=−3xy=-3x

y=x−12y=x^{-12}

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

有下列函數:1 y=3⋅2xy=3\cdot2^x ;2 y=6x+1y=6^x+1 ;3 y=9xy=9^x ;4 y=x34y=x^{34} . 其中指數函數的個數是

0

1

2

3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

化簡 log⁡78log⁡72\frac{\log_78}{\log_72} 等於

log⁡74\log_74

3log⁡723\log_72

22

33

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

函數 f(x)=−x+2f\left(x\right)=-x+2 在區間 [1,3]\left[1,3\right] 上的最大值是

2

3

-1

1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

如圖所示,下列符合函數定義的圖像的是

1

2,3,4

1,3,4

2

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

計算: cso75°sin⁡15°=cso75\degree\sin15\degree=

34+12\frac{\sqrt[]{3}}{4}+\frac{1}{2}

12−34\frac{1}{2}-\frac{\sqrt[]{3}}{4}

32+1\frac{\sqrt[]{3}}{2}+1

32−1\frac{\sqrt[]{3}}{2}-1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

在 ΔABC\Delta ABC 中,角 A,B,CA,B,C 的對邊分別是 a,b,ca,b,c . 若 ∠A=π4\angle A=\frac{\pi}{4} , ∠B=π6\angle B=\frac{\pi}{6} , a=2a=\sqrt[]{2} ,則 bb 的值為

11

2\sqrt[]{2}

3\sqrt[]{3}

22

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