Question

Se considera expresia E(x)= $[( \frac{x-3}{x+3} )^{2} + \frac{2x-6}{x+3} +1 ] * \frac{x+3}{2x}$ .
a)Aratati ca E(x)= $\frac{2x}{x+3}$ .
b)Determinati n ∈ N pentru care $\frac{1}{2}$ . E(n) ∈ N .

Answer 1

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