October 2018 2 50 Report

Wyznacz dziedzinę funkcji:

1) f(x) = \frac{7}{x+3}

2) f(x) = \frac{2-x}{-x^{2}+4x - 3}

3) f(x)= \sqrt{5-x}

4) f(x) = \sqrt{x^{2}-2x-8}

5) f(x) =  \frac{x^{2}-1}{ \sqrt{-x^{2} +3x -2}}


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