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Disequazioni Frazionarie e Letterali

Authored by Michele Massari

Mathematics

9th Grade

Disequazioni Frazionarie e Letterali
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Risolvere la disequazione: \( \frac{x-2}{x+3} < 0 \)

(-3, 2)

(0, 2)

(-3, 0)

(-5, -3)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual è il dominio della funzione \( f(x) = \frac{1}{x-1} \)?

D = R \ {1}

D = R

D = R \ {0}

D = R \ {1, 2}

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Semplifica l'espressione: \( \frac{2x}{4x^2} \)

rac{1}{x}

rac{1}{4x}

\frac{1}{2x}

rac{2}{4x^2}

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rappresenta graficamente la soluzione della disequazione: \( x^2 - 4 < 0 \)

(2, 3)

(-3, -1)

[-2, 2]

(-2, 2)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Applica la proprietà delle disuguaglianze: Se \( a < b \) e \( c > 0 \), allora cosa si può dire di \( ac \) e \( bc \)?

ac ≤ bc

ac = bc

ac > bc

ac < bc

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Risolvere la disequazione: \( \frac{3x+1}{x-2} \geq 0 \)

x \in \left(-\frac{1}{3}, 2\right) \cup \left(2, +\infty\right)

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

x \in \left(-\infty, 2\right)

x \in \left(-\infty, -\frac{1}{3}\right] \cup (2, +\infty)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Identifica il dominio della funzione \( g(x) = \sqrt{x-5} \)

(−∞, 5)

[0, 5)

[5, +∞)

(5, 10)

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