January 2019 1 9 Report
Zad. na nudę:
13.
Uprość wyrażenie: ( \frac{ \sqrt{x-a} }{ \sqrt{x+a}+ \sqrt{x-a} }+ \frac{x-a}{ \sqrt{x^2-a^2}-x+a }): \sqrt{ \frac{x^2}{a^2}-1 }
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