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Trigo (2)

Authored by juliette gaillon

Mathematics

11th Grade

Used 63+ times

Trigo (2)
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

La valeur exacte de

 cos(11π4)\cos\left(\frac{11\pi}{4}\right)  est :

 22\frac{\sqrt{2}}{2}  

 22-\frac{\sqrt{2}}{2}  

 12\frac{1}{2}  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

La valeur exacte de cos(13π6)\cos\left(\frac{13\pi}{6}\right)  est :


 12-\frac{1}{2}  

 32-\frac{\sqrt{3}}{2}  

 12\frac{1}{2}  

 32\frac{\sqrt{3}}{2}  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

La valeur exacte de cos(25π2)\cos\left(\frac{25\pi}{2}\right)  est : 


0

1

-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

La valeur exacte de cos(144π3)\cos\left(\frac{144\pi}{3}\right)  est :

0

1

-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vrai ou faux :
Si cos(x)=0\cos\left(x\right)=0  alors  sin(x)=1\sin\left(x\right)=1  


Vrai

Faux

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Si sin(x)=12\sin\left(x\right)=\frac{1}{2}  alors  sin(x+π)\sin\left(x+\pi\right)  vaut :


 12\frac{1}{2}  

 12-\frac{1}{2}  

 32\frac{\sqrt{3}}{2}  

 32-\frac{\sqrt{3}}{2}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quelle est la mesure d'un angle en radian dont la mesure appartient à l'intervalle ] π;π-\pi;\pi ] et dont le cosinus vaut  32-\frac{\sqrt{3}}{2}  et le sinus vaut  12\frac{1}{2}  ? 


 5π6\frac{5\pi}{6}  

 5π6\frac{-5\pi}{6}  

 2π3\frac{2\pi}{3}  

 2π3-\frac{2\pi}{3}  

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