2 krótkie zadania na dzisiaj.
6.
D: 5x - 10 ≠ 0 i 3x - 1 > 0
5x ≠ 10 3x > 1
x ≠ 2 x > 1/3
D = (1/3 ; 2 ) u (2 , + oo)
5.
y = -2x - 1
x = -1 to y = 2 - 1 = 1
x = 5 to y = -10 - 1 = -11
odp. y ∈ (-11, 1>
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6.
D: 5x - 10 ≠ 0 i 3x - 1 > 0
5x ≠ 10 3x > 1
x ≠ 2 x > 1/3
D = (1/3 ; 2 ) u (2 , + oo)
5.
y = -2x - 1
x = -1 to y = 2 - 1 = 1
x = 5 to y = -10 - 1 = -11
odp. y ∈ (-11, 1>