January 2019 1 33 Report
Wyznacz dziedzinę funkcji
a) f(x)= \sqrt{x} ^{6} +6x-2 (wszystko pod pierwiastkiem)
b) f(x)= \sqrt{x} ^{2}+3x+2
c)f(x)=  \frac{1}{ \sqrt{2x ^{2} }-8x+21 }
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