Question

calcula x
.
.
.....
......

Answer 1

Respuesta:

2,4

Explicación paso a paso:

1/x^2 = 1/3^2 + 1/4^2

1/x^2 = 1/9 + 1/16

1/x^2 = 25/144  -->  x = 12/5 = 2,4

Answer 2

Explicación paso a paso:

$\frac{1}{ {x}^{2} } = \frac{1}{ {3}^{2} } + \frac{1}{ {4}^{2} } \\ \frac{1}{ {x}^{2} } = \frac{25}{144}$

$\frac{1}{x} = \frac{5}{12} \\ 5x = 12 \\ x = \frac{12}{5}$

$x = 2.4$