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Απόλυτη Τιμή

Authored by Nasia Georgiou

Mathematics

11th Grade - University

Used 5+ times

Απόλυτη Τιμή
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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Για κάθε  x ∈ R  ισχύει ∣ x ∣ = x

Λαθος

Σωστό

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Αν ∣χ∣≥1 τοˊτε χ≤−1 και χ≥1\left|χ\right|\ge1\ τότε\ χ\le-1\ και\ χ\ge1  

Σωστό

Λάθος

3.

MULTIPLE CHOICE QUESTION

45 sec • 5 pts

Αν ∣χ∣=−1 \left|χ\right|=-1\  τότε

χ = 1

χ = -1

χ = -1 και χ = 1

Αδύνατη

4.

MULTIPLE CHOICE QUESTION

45 sec • 5 pts

Αν ∣χ−5∣=10\left|χ-5\right|=10  τότε

χ = 15

χ = -5

Αδύνατη

χ = -5 και χ = 15

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Αν ∣αβ∣=αβ τοˊτε\left|αβ\right|=αβ\ τότε  

α, β ομόσημοι

α, β ετερόσημοι

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