Mathematics

9th

grade

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

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  • 1. Multiple Choice
    1 minute
    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 Choice
    1 minute
    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 Choice
    1 minute
    1 pt

     tg 3900= ?tg\ 390^0=\ ?  

     33\frac{\sqrt{3}}{3}  

     tg 300tg\ 30^0  

     13\frac{1}{3}  

     3-\sqrt{3}  

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