Evaluare sumativă - Clasa 10

Evaluare sumativă - Clasa 10

10th Grade

8 Qs

quiz-placeholder

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Evaluare sumativă - Clasa 10

Evaluare sumativă - Clasa 10

Assessment

Quiz

Mathematics

10th Grade

Medium

Created by

Mititean Ancuta

Used 5+ times

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Valorile lui x pentru care este definită expresia:

 E(x)=2x2+5x3E\left(x\right)=\sqrt{2x^2+5x-3}  sunt:

 (,3][12,)\left(-\infty,-3\right]\cup\left[\frac{1}{2},\infty\right)  

 (,3)(12,)\left(-\infty,-3\right)\cup\left(\frac{1}{2},\infty\right)  

 [3,12]\left[-3,\frac{1}{2}\right]  

 (3,12)\left(-3,\frac{1}{2}\right)  

2.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

 (83) 118(63)432\left(8^3\right)^{\ \frac{1}{18}}\cdot\left(\sqrt{6^3}\right)^{\frac{4}{3}}\cdot\sqrt{2}  

Rezultatul calculului:

3.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

 log327+2log2554log27=\log_327+2\log_{25}5-4^{\log_27}=  

Rezultatul calculului:

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Soluțiile ecuației  x24x+5=0x^2-4x+5=0  sunt:


2+i și 2-i

5 și -1

-5 și 1

-2+i și -2-i

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Forma trigonometrică a numărului z=66iz=6-6i  este:


 62(cos7π4+isin7π4 )6\sqrt{2}\left(\cos\frac{7\pi}{4}+i\sin\frac{7\pi}{4}\ \right)  

 62(cosπ4+isinπ4 )6\sqrt{2}\left(\cos\frac{\pi}{4}+i\sin\frac{\pi}{4}\ \right)  

 62(cos3π4+isin3π4 )6\sqrt{2}\left(\cos\frac{3\pi}{4}+i\sin\frac{3\pi}{4}\ \right)  

 62(cos5π4+isin5π4 )6\sqrt{2}\left(\cos\frac{5\pi}{4}+i\sin\frac{5\pi}{4}\ \right)  

6.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

 (3+i)(42i)+2(5i)\left(3+i\right)\left(4-2i\right)+2\left(\overline{5-i}\right)  

Rezultatul calculului:

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Modulul numărului complex z=12+5iz=12+5i  este:


13

 119\sqrt{119}  

14

 125i12-5i  

8.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 log512+log5152log56\log_512+\log_515-2\log_56  

Rezultatul calculului:

1

 log530\log_530  

 log51080\log_51080  

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