Come si semplifica # 8 ^ (- 2/3) #?
Come si semplifica # 8 ^ (- 2/3) #? Risposta: #1/4# Spiegazione: #”using the “color(blue)”laws of exponents”# #•color(white)(x)a^mhArr1/a^m# #•color(white)(x)a^(m/n)hArr(root(n) a)^m# #8^(-2/3)=1/8^(2/3)=1/(root(3)8)^2=1/2^2=1/4#