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Diagnostinis 11

Authored by Laima Andrijauskienė

Mathematics

12th Grade

Used 2+ times

Diagnostinis 11
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25 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Geometrinės progresijos b5=16, b2=2. Apskaičiuokite septintąjį šios progresijos narį.

48

60

64

80

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Parašykite tris pirmuosius geometrinės progresijos narius.

48; 36; 24

48;12; 3

48; 24; 12

48; 18; 6

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Apskaičiuokite

45+51+57+...+153

1800

1881

1880

1882

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Nelygybės  x2>0x^2>0  sprendiniai yra:

visi skaičiai

 (0;)\left(0;\infty\right)  

 (;+)\left(-\infty;+\infty\right)  

 (;0);(0;+)\left(-\infty;0\right);\left(0;+\infty\right)  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Nelygybės  2x212x2x^2\le12x  sprendiniai yra

 [0;6]\left[0;6\right]  

 [6;+]\left[6;+\infty\right]  

 (;0);(6;+)\left(-\infty;0\right);\left(6;+\infty\right)  

0;6

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Raskite nelygybės  x2+8x+160x^2+8x+16\ge0  sprendinius:

 (;+)\left(-\infty;+\infty\right)  

sprendinių nėra

 (4;+)\left(-4;+\infty\right)  

-4

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