
Test první
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
Jaký je definiční obor funkce k(x) = log(2x − 1)?
(1/2, ∞)
(1, 2)
(0, 1/2)
(1/2, 1)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce g(x) = 1/(x − 3)?
R \{0}
R
R \{3}
R \{3, 5}
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Najděte definiční obor funkce h(x) = √(x + 4).
(−∞, −4)
[−4, ∞)
[0, ∞)
(−4, 0)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce k(x) = tan(x)?
R \{(2n + 1)π/2 | n ∈ Z}
R \{(2n)π | n ∈ Z}
R \{nπ | n ∈ Z}
R \{(2n + 1)π | n ∈ Z}
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce k(x) = cot(x)?
R \{kπ | k ∈ Z}
R \{kπ + π | k ∈ Z}
R \{kπ + π/2 | k ∈ Z}
R \{kπ + 3π/2 | k ∈ Z}
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Určete definiční obor funkce m(x) = 1/(xˆ2 − 4).
R \{2, −2}
R \{0}
R \{3, −3}
R \{1, −1}
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je definiční obor funkce n(x) = √(xˆ2 − 9)?
[3, 9)
(−∞, 3]
(−∞, −3] ∪ [3, ∞)
(−3, 3)
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