Question

calcule o valor de x+y quando a=2 e b=1

Answer 1

Resposta:

x = $\frac{-2^2 + 1^2}{2^-^1 + 1^-^1}$ = $\frac{-4 + 1}{\frac{1}{2} + 1 }$ = $-\frac{3}{\frac{3}{2} }$ = $-\frac{3}{1}$ . $\frac{2}{3}$ = $-\frac{6}{3}$ = - 2

y = $(\frac{2^2 + 1^-^1}{2})^-^1$ = $(\frac{4 + 1}{2})^-^1$ = $(\frac{5}{2})^-^1$ = $\frac{2}{5}$