Question

Calcule (raiz de 201 + raiz de 199)×( raiz de 201_raiz de 199)

Answer 1

(√201+√199)(√201-√199)   lembrando que (a+b)(a-b)=a²-b²,
201-199          efetue a subtracao
2 (resposta)

Answer 2

Resposta:

$\left(\sqrt{201}+\sqrt{199}\right)\left(\sqrt{201}-\sqrt{199}\right)\\\\\mathrm{Aplicar\:a\:regra\:da\:diferenca\:de\:quadrados:\:}\left(a+b\right)\left(a-b\right)=a^2-b^2\\\\\left(\sqrt{201}\right)^2-\left(\sqrt{199}\right)^2\\\\\left(\sqrt{201}\right)^2-\left(\sqrt{199}\right)^2=2\\\\=2$

2<<<----