Wykonaj działania
a) 1/x+1 + 3x/x+1
b) 1/x * 2/x+1
c) 1/x - 2/x+2
d) (x-1)^2/x : (x-1)(x+2)/x^2
a)
b)
c)
d)
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a)
b)
c)
d)