Question

simplifique
gente quer souber pode me dar uma forcinha ​

Answer 1

Resposta:

Explicação passo a passo:

$a)$

$(\sqrt[3]{-8} +3)^{2} -\{2-[\sqrt{(\frac{1}{9} )^{-1} } -12]\}=$

$(-2+3)^{2} -\{2-[\sqrt{(\frac{9}{1}) ^{1} } -12]\}=$

$(1)^{2} -\{2-[\sqrt{9} -12]\}=$

$1-\{2-[3-12]\}=$

$1-\{2-[-9]\}=$

$1-\{2+9\}=$

$1-11=$

$-10$

$b)$

$0,25\:.\:(-3)^{2} :\frac{1}{4} -(3\:.\:\sqrt[3]{-8} +11)=$

$\frac{1}{4}\:.\:9:\frac{1}{4} -(3.[-2]+11)=$

$\frac{9}{4}:\frac{1}{4} -(-6+11)=$

$\frac{9}{4}\:.\:\frac{4}{1} -(+5)=$

$\frac{36}{4}-5=$

$9-5=$

$4$

_______________________________________

$\sqrt{121} =11$

$\sqrt{900}=30$

$\frac{\sqrt{1+11} }{\sqrt{45+30} } =$

$\frac{\sqrt{12} }{\sqrt{75} } =$

$\frac{\sqrt{2^{2}.3 } }{\sqrt{3.5^{2} } } =$

$\frac{2\sqrt{3} }{5\sqrt{3} } =$

$\frac{2}{5}$