Trigonometria

Trigonometria

9th - 12th Grade

10 Qs

quiz-placeholder

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Trigonometria

Trigonometria

Assessment

Quiz

Mathematics

9th - 12th Grade

Practice Problem

Hard

Created by

sandra Bento

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

Qual das afirmações é verdadeira?

cos(alfa) = cateto oposto / hipotenusa

sen(alfa) = cateto adjacente / hipotenusa

sen(alfa) = cateto oposto / hipotenusa

cos(alfa) = cateto oposto / cateto adjacente

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Cos alfa é igual a ?

 ab\frac{a}{b}  

 cb\frac{c}{b}  

 ac\frac{a}{c}  

 bc\frac{b}{c}  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

a2 = 82 - 62

a2 = 82 + 62

82 = a2 + 62

62 = 82 - a2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Atendendo ao triângulo retângulo representado na figura, podemos afirmar que:

sen ρ 1,3sen\ \rho\ \approx1,3

cos ρ 0,8\cos\ \rho\ \approx0,8

sen ρ 0,6sen\ \rho\ \approx0,6

tan ρ 1,3\tan\ \rho\ \approx1,3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 sen2x+cos2x=?sen^2x+\cos^2x=?  
  

0

1

2

 tan2x\tan^2x  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sabendo que sen α =32sen\ \alpha\ =\frac{\sqrt{3}}{2}  e    cos α  =12\cos\ \alpha\ \ =\frac{1}{2}  ​, qual o valor de  tanα\tan\alpha  ?

 3\sqrt{3}  

 33\frac{\sqrt{3}}{3}  

 32\frac{\sqrt{3}}{2}  

 32\frac{\sqrt{3}}{2}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 sen(π3)=?sen\left(-\frac{\pi}{3}\right)=?  

 22-\frac{\sqrt{2}}{2}  

 12-\frac{1}{2}  

 32-\frac{\sqrt{3}}{2}  

 33-\frac{\sqrt{3}}{3}  

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