Question

Помогите решить задачи

Answer 1

1.
$x = sqrt{ {4}^{2} + {3}^{2}} = sqrt{16 + 9} = sqrt{25} = 5$
2.
$x = sqrt{ {13}^{2} - {4}^{2} } = sqrt{153} = 3 sqrt{17}$
3.
$x = sqrt{ sqrt{ {5}^{2} } + sqrt{ {5}^{2} } } = sqrt{5 + 5} = sqrt{10}$