Wykonaj działania, podaj odpowiednie założenia:
(2a+1)/(a+1) / (1+(3a^2)/(a^2-1))
2a+1/a+1 * a²-1/1+3a² = 2a+1/a+1 * (a-1)(a+1)/3a²+1 = 2(a+1)(a-1) / 3a² + 1
x∈R
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2a+1/a+1 * a²-1/1+3a² = 2a+1/a+1 * (a-1)(a+1)/3a²+1 = 2(a+1)(a-1) / 3a² + 1
x∈R