am nevoie urgent va rog

Răspuns:
Explicație pas cu pas:
2,75 - 1,25 = 1,5 = 15/10 = 3/2
11/18 - 1/9 = 11/18 - 2/18 = 9/18 = 1/2
(2^2)^3 = 4^3 = 64
[(1 - 1/2)^3]^2 = [(1/2)^3]^2 = (1/8)^2 = 1/64
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3/2 * 1/2 + 64 * 1/64 = 3/4 + 1 = 3/4 + 4/4 = 7/4