Sinus a cosinus 2

Sinus a cosinus 2

8th Grade

10 Qs

quiz-placeholder

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Sinus a cosinus 2

Sinus a cosinus 2

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Easy

Created by

Kateřina Ježková

Used 6+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vypočítejte:    \cos\frac{\pi}{2}= 

0

1

-1

 12\frac{1}{2}  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Vypočítejte:

 sin150°=\sin150°=  




 12\frac{1}{2}  

 32\frac{\sqrt{3}}{2}  

 22\frac{\sqrt{2}}{2}  

 12-\frac{1}{2}  

 32-\frac{\sqrt{3}}{2}  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Určete základní velikost úhlu   β\beta  , víte-li že platí  cosβ=2\cos\beta=2  . 

nelze určit

 β=30°\beta=30°  

 β=60°\beta=60°  

 β=π\beta=\pi  

 β=π2\beta=\frac{\pi}{2}  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Vypočítejte:

 sin(83π)=\sin\left(-\frac{8}{3}\pi\right)=  


 12-\frac{1}{2}  

 12\frac{1}{2}  

 32\frac{\sqrt{3}}{2}  

 32-\frac{\sqrt{3}}{2}  

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Je toto tvrzení pravdivé?

Funkce cosinus je funkce sudá.

ANO

NE

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Vypočítejte:

 sin(2611π)+sin(2611π)=\sin\left(-\frac{26}{11}\pi\right)+\sin\left(\frac{26}{11}\pi\right)=  


0

nelze určit

 12\frac{1}{2}  

 12-\frac{1}{2}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Určete základní velikost úhlu  α\alpha , víte-li že platí    sinα=0,5     cosα>0\sin\alpha=-0,5\ \ \wedge\ \ \ \cos\alpha>0  

 116π\frac{11}{6}\pi  

 π6\frac{\pi}{6}  

 56π\frac{5}{6}\pi  

 53π\frac{5}{3}\pi  

 π3\frac{\pi}{3}  

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