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b= 1-3 √3
a+b
(2+2√3)+(1-3√3)=3-√3
a-b
(2+2 √3)-(1-3 √3)=
2+2√3-1+3√3=1+5√3
a×b
(2+2 √3)(1-3 √3)=
2+6√3-18+2√3=-16+8√3
a:b
(2+2 √3):(1-3 √3)=
oblicz a+b a-b axb a:b
2+2√3 + 1-3√3 = 3-√3
a-b
2+2 √3-(1-3√3) = 2+2√3-1+3√3 = 1+5√3
a×b
(2+2 √3)(1-3 √3) = 2-6√3+2√3-18 = 4√3-16
a:b
2+2√3
______ =
1-3√3