1.rozwiąż równanie i nierówność
5^x+1-5^x-1=24
(1/2)^x^2-7>1/4
jedna druga do potęgi x2-7 > jedna czwarta
2. znajdz miary kątów alfa beta gama narysowanego wczworokąta
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5^x+1-5^x-1=24
5^x * 5 - 5^x * 5^(-1) = 24
5^x(5 - 1/5) = 24
5^x = 24 : 4,8
5^x = 5
5^x = 5^1
x = 1
(1/2)^(x^2-7) > 1/4
(1/2)^(x^2-7) > (1/2)^2
x^2 - 7 < 2
x^2 - 7 - 2 < 0
x^2 - 9 < 0
(x - 3)(x +3) < 0
x ∈ (-3, 3)
alfa = 75°
γ = 180° - 75° = 105°
β = 180° - 86° = 94°