Question

(A elevado a n+¹×A²-elevado a n) -²​

Answer 1

Resposta:

$a^{-6}$

Explicação passo-a-passo:

$(a^{n+1}.a^{2-n} )^{-2} \\\\= (a^{(n+1)+(2-n)} )^{-2}\\\\= (a^{n-n+1+2} )^{-2}\\\\= (a^{3} )^{-2}\\\\= a^{3.(-2)}\\\\= a^{-6}$