Question

Calcule :
2-² + (-2) -²

(-2)² - -2²

(3/7)-³ =
(-5/14)-² =
(2/7)-1 =
(1/17)-² =
(5/2)-4 =
(-2/3) -³ =

GENTE ME AJUDEM POR FAVOR !!!!!!!

Answer 1

Explicação passo-a-passo:

2-² + (-2)-²=

(1/2)² + ( - 1/2)²=

1/4 + ( +1/4)=

1/4 +1/4=

2/4=

1/2

(-2)² - (-2)²=

+4 - (+4)=

+4 -4=

0

(3/7)-³= (7/3)³= 343/27

(-5/14)-²= (- 14/5)²= +196/25

(2/7)-¹= (7/2)¹= 7/2

(1/17)-²= (17/1)²= 17²= 289

(5/2)-⁴= (2/5)⁴= 16/625

(-2/3)-³= ( - 3/2)³= - 27/8