Resolva as Expressões: a) 5⁰-(-1)- (-1/2)⁻² b) (1 - 1/2)⁴+(1+1/2)⁻¹Alguem me ajuda por favor to precisando URGENTE
Respostas
a) 5⁰ - ( - 1) - (- 1/2)⁻²
= 1 - ( -1) - (-2/1)²
= 1 + 1 - (- 2)²
= 1 + 1 - (4)
= 2 - 4
= - 2
b) ( 1 - 1/2)⁴ + ( 1 + 1/2)⁻¹
= ( 2/2 - 1/2)⁴ + (2/2 + 1/2) ⁻¹
= (1/2)⁴ + (3/2)⁻¹
= (1/2)⁴ + (2/3)¹
= 1/16 + 2/3
= 3/48 + 32/48
= 35/48
Resposta:
a) - 2 b) 35/48
Explicação passo-a-passo:
a) 5^0 - (- 1) - (- 1/2)^-2 = 1 + 1 - ( - 2)²
. = 2 - ( + 4)
. = 2 - 4
. = - 2
b) (1 - 1/2)^4 + (1 + 1/2)^-1 = ( 1/2 )^4 + ( 3/2 )^-1
. = 1/16 + (2/3)¹
. = 1/16 + 2/3 (m.m.c = 48)
. = (3 + 32)/48
. = 35/48