Trigonometria 9º ano

Trigonometria 9º ano

9th Grade

19 Qs

quiz-placeholder

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Trigonometria 9º ano

Trigonometria 9º ano

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSF.TF.A.2, HSG.SRT.C.8

Standards-aligned

Created by

Ana Mota

Used 32+ times

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19 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 cos(90º40º)=?\cos\left(90º-40º\right)=?  

 sin50º\sin50º  

 cos40º\cos40º  

 sin40º\sin40º  

 tan50º\tan50º  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

 bc=?\frac{b}{c}=?   

 sinα\sin\alpha  

 cosα\cos\alpha  

 tanα\tan\alpha  

 1tanα\frac{1}{\tan\alpha}  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cos2x+sin2x=?\cos^2x+\sin^2x=?  

0

1

2

 h2h^2  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A tangente de um ângulo agudo de um triângulo retângulo isósceles é igual a:

0

0,5

1

3

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

De um ângulo agudo  α\alpha  sabe-se que  cosα=13.\cos\alpha=\frac{1}{3}.  
Qual o valor de  sinα\sin\alpha 

 83\frac{\sqrt{8}}{3}  

 23\frac{2}{3}  

 53\frac{\sqrt{5}}{3}  

 103\frac{\sqrt{10}}{3}  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Qual dos seguintes valores não pode representar o cosseno de um ângulo agudo?

23\frac{2}{3}

54\frac{\sqrt{5}}{4}

0,990,99

54\frac{5}{4}

Tags

CCSS.HSF.TF.A.2

7.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Media Image

Qual ou quais as expressões que permitem calcular o valor de α?\alpha?  

tan1(34)\tan^{-1}\left(\frac{3}{4}\right)

tan1(43)\tan^{-1}\left(\frac{4}{3}\right)

cos1(35)\cos^{-1}\left(\frac{3}{5}\right)

sin1(45)\sin^{-1}\left(\frac{4}{5}\right)

cos1(45)\cos^{-1}\left(\frac{4}{5}\right)

Tags

CCSS.HSG.SRT.C.8

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