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三角比:特殊角(1)

Authored by Wai Man Yeung

Mathematics

7th - 9th Grade

Used 12+ times

三角比:特殊角(1)
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

sin 30° cos 30° tan 30° =

14\frac{1}{4}

34\frac{\sqrt{3}}{4}


12\frac{1}{2}


34\frac{3}{4}

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

求2 cos θ = 1 的銳角θ

30°

45°

60°

90°

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若 3 tan (θ + 15°) =  \sqrt{3},則銳角θ =

60°。

45°。

30°。

15°。

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

求 tan θ =  3\sqrt{3}    的銳角 θ 。

30°

45°

60°

90°

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

求圖中的 x

4

424\sqrt{2}

6

626\sqrt{2}

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

求圖中的 θ

90

60

45

30

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

求圖中的 x

353\sqrt{5}

12

535\sqrt{3}

9

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