Question

f)9+1/9-a raiz quadrada de 9

g)1/3 elevado a dois-(-1) elevado a 2

h)2.1/2.2-3.1/2/1/2+2

i)2+1/2 2 elevado a 2 /2-1

Answer 1

$f)~~9+ \dfrac{1}{9} - \sqrt{9} \to~~ 9+ \dfrac{1}{9} -3 \to~~ \dfrac{81+1-27}{9} \to~~ \boxed{\frac{55}{9} } \\\\\\ g)~~ \dfrac{1}{3} ^2-(-1)^2\to~~ \dfrac{1}{9} -1\to~~ \dfrac{1-9}{9} \to~~\boxed{ -\frac{8}{9} }\\\\\\ h)~~2. \dfrac{1}{2} .2-3. \dfrac{ \dfrac{1}{2} }{ \dfrac{1}{2} } +2\to~~ \dfrac{4}{2} -3.\dfrac{1}{2}.\dfrac{2}{1}+2\to~~ 2-3.\dfrac{2}{2}+2\to\\\\ 2-3.1+2\to~~ 2-3+2\to~~4-3\to~~\boxed{1}$



$i)~~ \frac{2+ \dfrac{1}{2} +2^2}{2-1} \to~~\frac{2+ \dfrac{1}{2} +4}{1} \to~~ 2+ \dfrac{1}{2} +4\to~~ \dfrac{4+1+8}{2} \to~~ \boxed{ \frac{13}{2} }$