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三角函數

Authored by 賴俊宇 賴俊宇

Mathematics

10th Grade

Used 3+ times

三角函數
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7 questions

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1.

FILL IN THE BLANK QUESTION

10 sec • 1 pt

參加賽跑比賽,當妳成功追過第3名時,妳會變成第幾名 ?

作答時只填入阿拉伯數字

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

下列哪個帽子不能戴

綠帽

小紅帽

螺帽

鴨舌帽

3.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Media Image

 觀察圖形,以下選項哪些正確 (多選)

 sinθ=bc\sin\theta=\frac{b}{c}  

 sinθ=ec\sin\theta=\frac{e}{c}  

 cosθ=ac\cos\theta=\frac{a}{c}  

 cosθ=db\cos\theta=\frac{d}{b}  

 tanθ=ea+d\tan\theta=\frac{e}{a+d}  

4.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Media Image

已知 B>C\angle B>\angle C  ,下列選項哪些正確 (多選)

 sinB>sinC\sin B>\sin C  

 sinB<sinC\sin B<\sin C  

 tanB>tanC\tan B>\tan C  

 tanB<tanC\tan B<\tan C  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 sin(2θ)=sin(θ+θ)=sinθ+sinθ=2sinθ\sin\left(2\theta\right)=\sin\left(\theta+\theta\right)=\sin\theta+\sin\theta=2\sin\theta  
以下選項哪個正確 
提示: 可以將 θ\theta  代入特殊角度判斷

3個等號的推導皆正確

第1個等號推導錯誤

第2個等號推導錯誤

第3個等號推導錯誤

6.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Media Image

以下選項哪些正確 ? (多選)

sinθ1>sinθ2>sinθ3\sin\theta_1>\sin\theta_2>\sin\theta_3

sinθ1<sinθ2<sinθ3\sin\theta_1<\sin\theta_2<\sin\theta_3

cosθ1>cosθ2>cosθ3\cos\theta_1>\cos\theta_2>\cos\theta_3

cosθ1<cosθ2<cosθ3\cos\theta_1<\cos\theta_2<\cos\theta_3

tanθ1>tanθ2>tanθ3\tan\theta_1>\tan\theta_2>\tan\theta_3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Covid-19中的19是什麼意思

日期

年份

成長時間

病毒基因序

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