Question

Sendo √2≌ 1,414, √3≌ 1,732 e √5≌ 2,236, calcule : √9 - √5 + √2 - √3

Answer 1

$\sqrt{9}=\sqrt{3^2}=3$
$3-2,236+1,414-1,732\approx0,446$

Answer 2

Sendo √2≌ 1,414, √3≌ 1,732 e √5≌ 2,236, calcule :
 
√9 - √5 + √2 - √3
 
 3 - 2,236 + 1,414 - 1,732
 0, 764 - 0,318
 
   0,446