Question

o valor da expressao v9+v16+v25-v81=

Answer 1

Oie, Td Bom?!

$= \sqrt{9} + \sqrt{16} + \sqrt{25} - \sqrt{81}$

$= \sqrt{3 {}^{2} } + \sqrt{4 {}^{2} } + \sqrt{5 {}^{2} } - \sqrt{9 {}^{2} }$

$= 3 + 4 + 5 - 9$

$= 12 - 9$

$= 3$

Att. Makaveli1996