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第一冊2-2化任意角為銳角三角函數

Authored by 游佳穆 游佳穆

Mathematics

10th - 12th Grade

Used 100+ times

第一冊2-2化任意角為銳角三角函數
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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 已知 (cscθ,cotθ)\left(\csc\theta,\cot\theta\right)  在第二象限,則角 θ\theta   在哪一象限?

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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 設 tanθ=34\tan\theta=-\frac{3}{4}  ,且 cosθ<0\cos\theta<0  ,則角 θ\theta   在哪一象限?

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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 設 secθ>0\sec\theta>0  ,且 tanθ<0\tan\theta<0  ,則角 θ\theta   在哪一象限?

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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 試問 \theta  在第三象限,下列三角函數值何者為正?

 tanθ\tan\theta  

 secθ\sec\theta  

 cscθ\csc\theta  

 sinθ\sin\theta  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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  tan(180°+θ)=\tan\left(180\degree+\theta\right)=  

 tanθ\tan\theta  

 tanθ-\tan\theta  

 cotθ\cot\theta  

 cotθ-\cot\theta  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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  cot(180°+θ)=\cot\left(-180\degree+\theta\right)=  

 tanθ\tan\theta  

 tanθ-\tan\theta  

 cotθ\cot\theta  

 cotθ-\cot\theta  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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  cot(θ)=\cot\left(-\theta\right)=  

 tanθ\tan\theta  

 tanθ-\tan\theta  

 cotθ\cot\theta  

 cotθ-\cot\theta  

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