Testul numarul 1 – algebra

18 bonus points

69 successes

English

Radicali, algoritm, multimea numerelor reale.

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Question 1 of 10

1. Question
1 points
Rădăcina pătrată a numărului 576 este:
- 24
- 576
- 288
- 36
Correct

Incorrect
Question 2 of 10

2. Question
1 points
Rezultatul calculului $\sqrt{13^{2} - 5^{2}} =$
- 18
- 6
- 12
- 8
Correct

Incorrect
Question 3 of 10

3. Question
1 points
$|2 - \sqrt{5}| =$
- $\sqrt{5} - 2$
- $2 - \sqrt{5}$
- M
- N
Correct

Incorrect
Question 4 of 10

4. Question
1 points
Valoarea de adevăr a propoziției ˮ1,41421356....... este număr iraționalˮ este
- Fals
- M
- Adevărat
- N
Correct

Incorrect
Question 5 of 10

5. Question
1 points
$\sqrt{10^{2} + 30^{2} - 18^{2}} =$
- 26
- 25
- 38
- 22
Correct

Incorrect
Question 6 of 10

6. Question
1 points
Introducând factorii sub radical $3 \sqrt{6}$ , numărul este egal cu :
- $\sqrt{54}$
- $\sqrt{108}$
- $\sqrt{18}$
- $\sqrt{6}$
Correct

Incorrect
Question 7 of 10

7. Question
1 points
Dintre numerele $3 \sqrt{5}$ și $4 \sqrt{3}$ mai mare este:
- $4 \sqrt{3}$
- D
- B
- $3 \sqrt{5}$
Correct

Incorrect
Question 8 of 10

8. Question
1 points
Ordonaţi crescător: $2 \sqrt{5}; - 1 \frac{1}{2}; - \sqrt{5}; 5; - 0, (6); - 2$
- $- 0, (6); - \sqrt{5}; - 2; - 1 \frac{1}{2}; 2 \sqrt{5}; 5$
- $- 0, (6); - 1 \frac{1}{2}; - 2; - \sqrt{5}; 2 \sqrt{5}; 5$
- $- \sqrt{5}; - 2; - 1 \frac{1}{2}; - 0, (6); 2 \sqrt{5}; 5$
- E
Correct

Incorrect
Question 9 of 10

9. Question
1 points
$\sqrt{30976}$ =
- 15488
- 176
- 184
- 167
Correct

Incorrect
Question 10 of 10

10. Question
1 points
Scoateţi factorii de sub raricali $\sqrt{75}$ :
- $3 \sqrt{5}$
- $5 \sqrt{3}$
- $5 \sqrt{5}$
- $3 \sqrt{15}$
Correct

Incorrect

Examples of questions from "Testul numarul 1 – algebra"

Rădăcina pătrată a numărului 576 este:
Valoarea de adevăr a propoziției ˮ1,41421356....... este număr iraționalˮ este
$\sqrt{10^{2} + 30^{2} - 18^{2}} =$

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