Zad.1. Po wykonaniu działań w wyrazeniu: 2^-2 + 2^-2/3 przez 3^0 (z obliczeniami)
A. 4/5 B. 1/3 C. 1 D. 2
Zad.2.
załącznik.
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1.
2^-2 + (2^-2)/3 (1/2)^2 + (1/2)^2 / 3
------------------ = --------------------------- = 1/4 + (1/4) / 3 = 1/4 + 1/4 * 1/3 = 1/4 + 1/12 = 3/12 + 1/12 =
3^0 1
= 4/12 = 1/3
odp. B
2.
α + 65* + 90* + 90* = 360*
α = 360* - 180* - 65*
α = 115*
odp. α = 115* bo B