
https://www.matweb.cz/definicni-obor/
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
Anonymous Anonymous
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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 jsou záporné
Množina všech hodnot, které můžeme dosadit za argument x
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce f(x) = 1/x?
(0, ∞)
ℝ ∖ {0}
ℝ
(-∞, 0)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor logaritmické funkce?
ℝ ∖ {0}
(0, ∞)
(-∞, 0)
ℝ
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce f(x) = √(2x + 8)?
(-4, ∞)
(-∞, -4)
(0, ∞)
(-2/3, ∞)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce f(x) = 1/x²?
ℝ ∖ {0}
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 ∖ {π/2 + Kπ; K ∈ ℤ}
ℝ
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