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Circonferenza

Authored by Marino Giaccone

Mathematics

11th Grade

Used 5+ times

Circonferenza
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14 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image


a=0a=0

a<0a<0

a>0a>0

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

b=0b=0

b>0b>0

b<0b<0

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

c=0c=0

c0c\ne0

4.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

 x2+y2+2x+2y2=0x^2+y^2+2x+2y-2=0  Trova centro e raggio della circonferenza. Quanto vale il centro? (usare notazione (x;y)

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 x2+y2+2x+2y2=0x^2+y^2+2x+2y-2=0  Dopo aver trovato centro e raggio della circonferenza, quanto vale la superficie?

 2π2\pi  

 4π4\pi  

 8π8\pi  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Quale di queste circonferenze è "complessa", nel senso che non ha soluzioni sul piano reale ma solo su quello complesso?

x2+y26y+12=0x^2+y^2-6y+12=0

x2+y2+4x2y+1=0x^2+y^2+4x-2y+1=0

x2+y22x+5y=0x^2+y^2-2x+5y=0

7.

OPEN ENDED QUESTION

5 mins • Ungraded

Scrivi l'equazione della circonferenza con diametro  AB\overline{AB}  sapendo che  A(4;2)A\left(-4;-2\right)  e  B(2;4)B\left(2;-4\right) . (Usa la notazione x^2+y^2+ax+by+c=0)

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