PROSZE POMOZCIE MI. MAM ZALICZENIE DO 3 KLASY A BEZ TEGO NIE DAM RADY. bardzo prosze poprawka juz jutro.....
ad1 rozwiaz zadania
a) ×/(×+2) + 2×/(×-3)=
b)(3×-1)/× - (×-5)/(2×+1)
c)(4×-12)/×+2 * (2×+4)/(3×-9)
d)2×/ײ-9 / 6ײ/(ײ-6×+9)
e) (4×-1)/× =0
f) (5×+4)/×-2 =0
g) (×-3)/2× = (×-2)/(2×+1)
h)×/(×-1)=(×+2)/×
i) sin×= √3/2
j) tg×=1
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D:
x+2≠0
x≠-2
x-3≠0
x≠3
x∈∈R\{-2;3}
D:
x≠0
2x+1≠0
2x≠-1
x≠-0,5
D:x∈R\{-0,5 ; 0}
D:x+2≠0
x≠-2
3x-9≠0
3x≠9
x≠3
x∈R\{-2;3}
D:
x²-9≠0
x²≠9
x≠3 ∨ x≠-3
6x²≠0
x≠0
x∈R\{-3;0;3}
D:x≠0
x∈R\{0}
D;x-2≠0
x≠2
x∈R\{2}
D:2x≠0
x≠0
2x+1≠0
2x≠-1
x≠-0,5
x∈R\{-0,5;0}
D:
x-1≠0
x≠1
x≠0
x∈R\{0;1}
j)tgx=1
x=45°