Cercul trigonometric. Functii trigonometrice: sin,cos,tg,ctg

Cercul trigonometric. Functii trigonometrice: sin,cos,tg,ctg

Assessment

Assessment

Created by

Dorina dorinanoroc@yahoo.com

Mathematics

9th Grade

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Hard

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20 questions

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1.

Multiple Select

1 min

1 pt

 cos 3300=?\cos\ 330^{0^{ }}=?  

 cos 300\cos\ 30^0  

 32\frac{\sqrt{3}}{2}  

 12\frac{1}{2}  

 22\frac{\sqrt{2}}{2}  

2.

Multiple Select

1 min

1 pt

 sin 2400 = ?\sin\ 240^0\ =\ ?  

 12-\frac{1}{2}  

  sin 600-\ \sin\ 60^0  

  32-\ \frac{\sqrt{3}}{2}  

 33-\frac{\sqrt{3}}{3}  

3.

Multiple Select

1 min

1 pt

 tg 3900= ?tg\ 390^0=\ ?  

 33\frac{\sqrt{3}}{3}  

 tg 300tg\ 30^0  

 13\frac{1}{3}  

 3-\sqrt{3}  

4.

Multiple Select

1 min

1 pt

 cos 4π3= ?\cos\ \frac{4\pi}{3}=\ ?  

  cos π3-\ \cos\ \frac{\pi}{3}  

- 1

 32-\frac{\sqrt{3}}{2}  

 12-\frac{1}{2}  

5.

Multiple Select

1 min

1 pt

 ctg 5π3=?\operatorname{ctg}\ \frac{5\pi}{3}=?  

 33-\frac{\sqrt{3}}{3}  

 ctg π3-\operatorname{ctg}\ \frac{\pi}{3}  

 12-\frac{1}{2}  

 12-\frac{1}{\sqrt{2}}  

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