Usuń niewymierność z mianownika! POMOCY !
a) 3/^^5(pierwiastek)
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pierwiastek /^^5
b) 4+/^^5
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/^^3-/^^2
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a) 3/^^5(pierwiastek) 3/^^5 x /^^5 15
------------------------- = ----------------------- = ----------- = 3
pierwiastek /^^5 /^^5 x /^^5 5
b) 4+/^^5 =4+/^^5 (/^^3+/^^2) = 4+ /^^15 +/^^10
--------------- = ----------------------------- = --------------------------- =
/^^3-/^^2 =( /^^3 - /^^2)(/^^3+/^^2)= /^^9 +/^^6 - /^^6 -/^^4
= 4/^^15=/^^10= 4 +/^^15+/^^10
= -------------------= ----------------------- = 4+/^^15 + /^^10
= 3-2 =1