Question

Calcule:
A)-5^2+1-74^0=

B) (-8)^2-2-(-1) =

C(1-2,5)^2 =

D) 3^2+3^-2=

E)5^0-(-1)-(-1/2)^2

F)(1/2)^-1 +(1/2)^-2

OBS: mim ajude fazer as contas

Answer 1

A)-5^2 + 1 - 74^0 =
-25 + 1 - 0 =
= 24

B) (-8)^2 - 2 -(-1) =
64 - 2 + 1 =
62 + 1 =
= 63

C(1 - 2,5)^2 =
(1)² + 2. 1. (-2,5) - (2,5)² =
1 + (-5) - 6,25 =
-4 - 6,25 =
= 10,25

D) 3^2 + 3^-2 =
9 + 0,03 =
= 9,03

E)5^0 -(-1) -(-1/2)^2 =
0 + 1 + (1/4) =
= 2/4

F)(1/2)^-1 +(1/2)^-2 =
2 + 4 =
= 6

Answer 2

Resposta:

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