1)
x-1≥0 i x≠0
x≥1 i x≠0
rozw.iloczyn,czyli x≠1
2)
mianowniki rozne od zera,a wiec:
x-2≠0 i x²-2x+1≠0
x≠2 i delta=4-4=0
x≠2 i x≠2/2
x≠2 i x≠1
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1)
x-1≥0 i x≠0
x≥1 i x≠0
rozw.iloczyn,czyli x≠1
2)
mianowniki rozne od zera,a wiec:
x-2≠0 i x²-2x+1≠0
x≠2 i delta=4-4=0
x≠2 i x≠2/2
x≠2 i x≠1