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skala = 1 : (30,4 km/3,2 cm)
skala = 1 : 950.000
.
2)
√75 + 2√3 - 2√12 + 3√27 =
= 5√3 + 2√3 - 2(2√3) + 3(3√3)
= 5√3 + 2√3 -4√3 +9√3
= (5+2-4+9)√3
= 12√3