
https://www.matweb.cz/definicni-obor/
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
Co je to definiční obor funkce?
Množina všech hodnot, které jsou kladné
Množina všech hodnot, které funkce nikdy nebere
Množina všech hodnot, které můžeme dosadit za argument x
Množina všech hodnot, které jsou záporné
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce f(x) = 1/x?
(-∞, 0)
(0, ∞)
ℝ
ℝ ∖ {0}
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor logaritmické funkce?
(0, ∞)
ℝ
(-∞, 0)
ℝ ∖ {0}
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce f(x) = √(2x + 8)?
(0, ∞)
(-∞, -4)
(-2/3, ∞)
(-4, ∞)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce f(x) = 1/x²?
(-∞, 0)
ℝ
ℝ ∖ {0}
(0, ∞)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce f(x) = sin(x)?
ℝ
(-∞, ∞)
(0, 1)
(-1, 1)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce f(x) = tan(x)?
(0, π)
(-∞, ∞)
ℝ
ℝ ∖ {π/2 + Kπ; K ∈ ℤ}
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