Question

$\sqrt{3} -\sqrt{2}).(\sqrt{3} + \sqrt{2} )e igual a \\a) 6\\b) 1\\c) 0\\d) -1\\e) -6$

Answer 1

Resposta:

1

Explicação passo-a-passo:

$( \sqrt{3} -\sqrt{2}).(\sqrt{3} + \sqrt{2}) \\ aplicando \: a \: distributiva \: \\ \sqrt{3 } \times \sqrt{3} + \sqrt{3} \times \sqrt{2} - \sqrt{2} \times \sqrt{3} - \sqrt{2} \times \sqrt{2} \\ \sqrt{3 \times 3} + \sqrt{3 \times 2} - \sqrt{2 \times 3} - \sqrt{2 \times 2} \\ \sqrt{9} + \sqrt{6} - \sqrt{6} - \sqrt{4} \\ 3 - 2 \\ 1$