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geometria analityczna

Authored by Renata Kusiuk

Mathematics

University

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geometria analityczna
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11 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Wzór na długość odcinka AB, gdzie A=(xA,yA) i B=(xB,yB) ma postać:

AB=(xAxB)2+(yA+yB)2\left|AB\right|=\sqrt{\left(x_A-x_B\right)_{ }^2+\left(y_A+y_B\right)^2}

AB=(xBxA)2+(yByA)2\left|AB\right|=\sqrt{\left(x_B-x_A\right)_{ }^2+\left(y_B-y_A\right)^2}

AB=(xAyA)2+(xByB)2\left|AB\right|=\sqrt{\left(x_A-y_A\right)_{ }^2+\left(x_B-y_B\right)^2}

AB=(xA+xB)2+(yA+yB)2\left|AB\right|=\sqrt{\left(x_A+x_B\right)_{ }^2+\left(y_A+y_B\right)^2}

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Środek odcinka o końcach A=(xA,yA) i B=(xB,yB) obliczymy ze wzoru:

S=(xA+xB2,yA+yB2)S=\left(\frac{x_A+x_B}{2},\frac{y_A+y_B}{2}\right)

S=(xAxB2,yAyB2)S=\left(\frac{x_A-x_B}{2},\frac{y_A-y_B}{2}\right)

S=(xA+yA2,xB+yB2)S=\left(\frac{x_A+y_A}{2},\frac{x_B+y_B}{2}\right)

S=(xA2,yB2)S=\left(\frac{x_A}{2},\frac{y_B}{2}\right)

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Środkiem odcinka o końcach A=(-3,2) i B=(5,-4) jest punkt:

S=(1,5)S=\left(1,5\right)

S=(4,6)S=\left(4,6\right)

 S=(1,1)S=\left(1,-1\right) 

S=(3,1)S=\left(3,1\right)

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Środek okręgu o równaniu  (x+5)2+(y1)2=49\left(x+5\right)^2+\left(y-1\right)^2=49  to punkt:

 S=(5,1)S=\left(5,1\right)  

 S=(5,1)S=\left(-5,-1\right)  

 S=(5,1)S=\left(-5,1\right)  

 S=(7,1)S=\left(7,-1\right)  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Promień okręgu o równaniu  (x4)2+(y+1)2=144\left(x-4\right)^2+\left(y+1\right)^2=144  ma długość równą:

 2525  

 1-1  

 1212  

 55  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Wskaż równanie okręgu o środku  S=(5,3)S=\left(-5,3\right)  i promieniu  r=4r=4  :

 (x5)2+(y3)2=4\left(x-5\right)^2+\left(y-3\right)^2=4  

 (x+5)2+(y3)2=4\left(x+5\right)^2+\left(y-3\right)^2=4  

 (x+5)2+(y3)2=16\left(x+5\right)^2+\left(y-3\right)^2=16  

 (x5)2(y+3)2=16\left(x-5\right)^2-\left(y+3\right)^2=16  

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Wyznacz sumę wektorów [1, 3] + [5, -2] =

[6,-2]

[6,-1]

[6,1]

[6,2]

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