А) 2 ABC,ADK. б) 2 AED,AEK.
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4,2n - n = 5,12 8,2t - 4,4t = 38,38
3,2n = 5,12 3,8t = 38,38
n = 5,12 : 3,2 t = 38,38 : 3,8
n = 1,6 t = 10,1
а)
x = 0.0(3) = 0.03333333...
10x = 0.(3) = 0.3333333...
10x - x = 9x = 0.3
x = 0.3/9 = 1/30
б)
0.0(3) = 0.03 * 1.(1) = 0.03(1 + 0.1 + 0.1^2 + 0.1^3 + ...) = 0.03 * 1/(1 - 0.1) = 0.03/0.9 = 1/30