Question

calcule a raiz quadrada de casa racional

a) √0,09
b)
$\sqrt{ } \frac{121}{169}$
c)√0,25
d) -√0,69​

Answer 1

Explicação passo-a-passo:

$a)\\ \sqrt{0,09} =\sqrt{{9\over100}} ={3\over10}=0,3\\ \\ b)\\ \\ \sqrt{{121\over169}} ={11\over13}\\ \\ c)\\ \\ \sqrt{0,25} =\sqrt{{25\over100}} ={5\over10}=0,5\\ \\ d)\\ -\sqrt{0,64} =-\sqrt{{64\over100}} =-{8\over10}=-0,8$