Question

descubra o valor de x​

Answer 1

Resposta:

${3}^{2} = {x}^{2} + {x}^{2} \\ 9 = 2 {x}^{2} \\ {x}^{2} = \frac{9}{2} \\ x = \sqrt{ \frac{9}{2} } \\ x = \frac{3. \sqrt{2 } }{ \sqrt{2} . \sqrt{2} } \\ x = \frac{3 \sqrt{2} }{2} \\ x = \frac{3 \times 1.41}{2} ou \: aproximadamente\\ x = 2.11$