October 2018 1 19 Report

Prosze o pomoc!!!

1.Oblicz kwadrat liczby 2x-5.

2.Znajdz liczbe której 12% wynosi 40.

3.Oblicz:

a) log25+log40

b) √108+√60

c)7⁸:7¹⁰

d)9⁴·3⁻³:27²

4.Usun nie wymierność z mianownika

4/3+2√2

5.Wyznacz A∧B, A∨B, A/B, B/A gdy A=<-2,+∞) B=(-6,5)

6.Jeśli x=3-2√2 i y=3-√2 oblicz x-2y.


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