Question

calcule o valor das expressões
a) (-4/3)²-1
b)3/2+(-1/2)²-8
c)(1-1/2)²-(-1+1/2)³
d)(1+1/2)²-1/4

Answer 1

a) (-4/3)²-1

16/9 - 1/1

(16-9)/9

7/8

b)3/2+(-1/2)²-8

3/2+1/4-8/1

(6+1-32)/4

25/4

c)(1-1/2)²-(-1+1/2)³

(0/2)² - (2/2)³

0 - 1³

-1

d)(1+1/2)²-1/4

(2/2)³ -1/4

1³ - 1/4

1 - 1/4

(4-1)/4

3/4

Answer 2

Resposta:

a) (-4/3)²-1

-4²/3²-1

16/9-1

16-9/9=7/9

b)3/2+1/2-8

3/2+1/4-8

MMC de 2,4=4

6+1-32/4=25/4

c)0-1/8=-0,125

d)(1+1/2)²=(3/2)²=3²/2²=9/4

9/4-1/4=(9-1)/4=8/4=2