wzory Vietea

wzory Vietea

10th Grade

10 Qs

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wzory Vietea

wzory Vietea

Assessment

Quiz

Mathematics

10th Grade

Practice Problem

Hard

Created by

MAŁGORZATA FORNALIK

Used 21+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Oblicz 1/x+1/x dla funkcji y=2x2 - 3x + 5

6/9
3/4
5/3
3/5

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Oblicz x12+x2 dla y=5x2-8x-4

103/25
101/24
104/25
2/5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Oblicz sumę pierwiastków równania  y=2x2+6x10y=2x^2+6x-10  

 0,6-0,6  

 3-3  

 5-5  

3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Oblicz iloczyn pierwiastków równania  y=2x2+6x10y=2x^2+6x-10  

 0,6-0,6  

 3-3  

 5-5  

 33  

 55  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Dwa pierwiastki różnych znaków ma równanie:

 x24x+5=0x^2-4x+5=0  

 12x220x+3=012x^2-20x+3=0  

 2x2+23x1=02x^2+2\sqrt{3}x-1=0  

 4x243x+3=04x^2-4\sqrt{3}x+3=0  

żadne z podanych równań

6.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Zaznacz wszystkie zdania prawdziwe dla równania:

 5x2+6x+1 = 05x^2+6x+1\ =\ 0  

 Δ=16\Delta=16  

 x1=1 i x2 =0,2x_1=-1\ i\ x_{2\ }=-0,2  

 x1x2= 65x_1\cdot x_2=\ -\frac{6}{5}  

 x1+x2= 15x_1+x_2=\ \frac{1}{5}  

 x1  i x2    są tych samych znakoˊwx_1\ \ i\ x_{2\ \ \ \ }są\ tych\ samych\ znaków  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 Oblicz(x1+x2)2 dla 3x2+12x+6 = 0 i x1 i x2 Oblicz\left(x_1+x_2\right)^2\ dla\ 3x^2+12x+6\ =\ 0\ i\ x_1\ i\ x_{2\ }  są pierwiastkami równania

16

-16

4

-4

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