Question

nu inteleg, adica deloc.

Answer 1

$\sqrt{ \tfrac{10 {}^{10} - 1 }{1111111111} } \\ \\ = \sqrt{ \tfrac{10000000000 - 1}{1111111111} } \\ \\ = \sqrt{ \tfrac{9999999999}{1111111111} } \\ \\ = \sqrt{9} \\ \\ = 3$

Answer 2

Explicație pas cu pas:

$\sqrt{ \dfrac{ {10}^{10} - 1 }{1111111111} } = \sqrt{\dfrac{9999999999}{1111111111} } = \sqrt{9} = 3$