oblicz prostą nierówność wykładniczą(0,8)^(2x-1)≥(1,25)^(x+2)
(0,8)^(2x-1)≥(1,25)^(x+2)
(4/5)^(2x-1) ≥ (5/4)^(x+2)
(5/4)^[ - (2x-1)] ≥ (5/4)^(x+2)
-(2x - 1) ≥ x + 2
-2x + 1 ≥ x + 2
-2x - x ≥ 2 - 1
-3x ≥ 1
x ≤ - 1/3
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(0,8)^(2x-1)≥(1,25)^(x+2)
(4/5)^(2x-1) ≥ (5/4)^(x+2)
(5/4)^[ - (2x-1)] ≥ (5/4)^(x+2)
-(2x - 1) ≥ x + 2
-2x + 1 ≥ x + 2
-2x - x ≥ 2 - 1
-3x ≥ 1
x ≤ - 1/3