Question

qual o valor de x ?

Answer 1

Resposta:

A. X=10

B. X=2

Explicação passo-a-passo:

A.

$x^{2} =8^{2} +6^{2} \\x=10$

B.

$MNx^{2} =(\sqrt{3})^{2} +(\sqrt{2})^{2}\\MN^{2} =5\\MN=\sqrt{5} \\(\sqrt{5} )^{2} =x^{2} +1\\5=x^{2} +1\\4=x^{2} \\x^{2} =4\\X=\sqrt{4} \\X=2$