Question

Me Ajudem ??

a) 1 1 1 1
— + — - ( - — )² - —
2 2 2 2

b) 1
( —)-² +{ 2³-[8º-(3¹+2³)]-9º}
4
​

Answer 1

a

$\frac{1}{2} + \frac{1}{2} - ( - \frac{1}{2}) {}^{2} - \frac{1}{2 } \\ \frac{1}{2} + \frac{1}{2} - \frac{1}{4} - \frac{1}{2} \\ \frac{2 + 2 - 1 - 2}{4} = \frac{1}{4}$

b

$( \frac{1}{4}) {}^{ - 2} + ( {2}^{3} - (8 {}^{0} - (3 {}^{1} + {2}^{3} )) - {9}^{0} \\ {4}^{2} + (8 - (1 - (3 + 8)) - 1 \\ 16 + (8 - (1 - 11) - 1 \\ 16 + (8 - ( - 10) - 1 \\ 16 + (8 + 10) - 1 \\ 16 + 18 - 1 = 33$