Geometria Analítica

Geometria Analítica

11th Grade

10 Qs

quiz-placeholder

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Geometria Analítica

Geometria Analítica

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Hard

Created by

Alzira Martins

Used 55+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

1.   Considere, num referencial  OxyzOxyz   , os pontos   A(1, 2, 3)A\left(-1,\ 2,\ 3\right)  e  B(3, 4, 0)B\left(3,\ -4,\ 0\right)  e o vetor    u (2, 4, 1)\ \overrightarrow{\ u\ }\left(2,\ -4,\ -1\right) 
Qual é o valor do produto escalar   AB  u \overrightarrow{AB}\ \cdot\overrightarrow{\ u\ }  ?

 2020  

 2525  

 3030  

 3535  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Na figura a reta  rr é perpendicular à reta definida pela equação vetorial  (x, y)=(1, 3)+k(3,5), kIR\left(x,\ y\right)=\left(1,\ 3\right)+k\left(3,5\right),\ k\in IR . Qual é o valor de  tan θ\tan\ \theta  ?

 53-\frac{5}{3}  

 35-\frac{3}{5}  

 35\frac{3}{5}  

 53\frac{5}{3}  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Na figura está representado um cubo. Sabe-se que as coordenadas dos pontos A e E são: A(3, 5, 3)A\left(3,\ 5,\ 3\right)  E(1, 2, 3)E\left(1,\ 2,\ -3\right) . Qual é a equação cartesiana do plano ABC?

 2x+3y+6z39=02x+3y+6z-39=0  

 2x+3y+6z+39=02x+3y+6z+39=0  

 x+2y+3z=0-x+2y+3z=0  

 2x+3y+6z=02x+3y+6z=0  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Na figura  A(4, 2)A\left(4,\ 2\right)  e  B(8, 1)B\left(8,\ -1\right) . Se  α\alpha  é a inclinação da reta  ABAB , então  tan α\tan\ \alpha  é:  

 34-\frac{3}{4}  

 34\frac{3}{4}  

 35-\frac{3}{5}  

 43-\frac{4}{3}  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A reta de equação  (x,y,z)=(1,2,3)+k(2,1,m), kIR\left(x,y,z\right)=\left(1,2,3\right)+k\left(2,-1,m\right),\ k\in IR  é paralela ao plano  α\alpha  de equação  3mx+3y+3z+1=03mx+3y+3z+1=0 

O valor de  mm  é: 

 33  

 13\frac{1}{3}  

 11  

 1-1  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Na figura o ponto AA  pertence ao plano  xOyxOy  e  BB  pertence ao plano  yOzyOz . Qual das condições seguintes é uma equação do plano  OABOAB  ? 

 12x15y+20z=012x-15y+20z=0  

 5x+4y+3z=05x+4y+3z=0  

 12x15y20z=012x-15y-20z=0  

 4x5y+3z=04x-5y+3z=0  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

 2x+2y+z=42x+2y+z=4  é a equação cartesiana do plano  ACDACD 

A medida do volume do paralelepípedo é igual a: 

 1616  

 88  

 828\sqrt{2}  

 44  

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