
určování definičního oboru různých funkcí + určení def oboru
Authored by Anonymous Anonymous
Mathematics
10th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Určete definiční obor funkce f(x) = \frac{1}{x-3}.
R = (-\infty, 3]
R = [3, \infty)
R = (-\infty, 3) \cup (3, \infty)
R = (3, \infty)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce g(x) = \sqrt{x+4}?
[-4, ∞)
[0, ∞)
(-4, 4)
(-∞, -4)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Určete definiční obor funkce h(x) = ln(x - 2).
(2, 5)
(1, 2)
(0, 2)
(2, ∞)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce k(x) = x² - 5x + 6?
(0, 5)
ℝ
ℝ+1
ℝ-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Určete definiční obor funkce m(x) = \frac{1}{x^2 - 1}.
R = (-\infty, 1) \cup (1, \infty)
R = (-\infty, -1) \cup (1, \infty)
R = (-\infty, -1) \cup (-1, 1) \cup (1, \infty)
R = (-1, 1)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce n(x) = √(x² - 9)?
[-3, 3]
(-∞, -2) ∪ (2, ∞)
(-∞, -3] ∪ [3, ∞)
(-∞, 3)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Určete definiční obor funkce p(x) = \frac{3}{x^2 + 2x + 1}.
(-\infty, -1) \cup (-1, \infty)
(-\infty, 1)
(-1, 1)
(-\infty, -2) \cup (-2, \infty)
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