Question

calcule : √64+36 e √64 + √36 , b) √25-16 e √25 - √16 , c) √16×100 e √16 × √100 , d)√16÷4 e√16 ÷ √4

Answer 1

$a) \sqrt{64+36} = \sqrt{100} =10 \sqrt{64} + \sqrt{36} = 8+6 =14$

$b) \sqrt{25-16} = \sqrt{9} =3 \sqrt{25} - \sqrt{16} = 5-4=1$

$c) \sqrt{16.100}= \sqrt{1600} =40 \sqrt{16} . \sqrt{100} =4.10=40$

$d) \sqrt{ \frac{16}{4}} = \sqrt{4} =2 \sqrt{16} =4 \sqrt{4} =2 \frac{4}{2} =2$