Question

calcule as seguintes potência​

Answer 1

Resposta:

A)2

B)23/4

C)19/20

D)12

Explicação passo-a-passo:

A) (-2)² - 2¹=4 - 2=2

B)4⁰ - 4‐¹ + 5¹= 1 - 1/4 + 5=6 -1/4=(6.4 - 1)/4=23/4

C)2.10‐¹ + 3.2‐²=2/10 + 3/4=1/5 + 3/4=(4+15)/20=19/20

D)[(-5)² - 4²]/(2‐¹ + 2‐²)=[25 -16]/(1/2 + 1/4)=9/(2/4+1/4)=9/(3/4)=9.4/3=36/3=12