Question

Calcule o valor das expressções.

a) -2/3³ +1
b)2x √25 - √9/4
c)3/5 + (-1/2) + (-1/10)
d)5 - 1/2 + (1/2)²
e)(-1 +1/2) - (-1/6 + 2/3)
f) (1/2 - 3/4) dividido (1 - 2/5)
g) [(-1/2)³+ 2 . (-1) elevado 4] dividido 1/2
h)-3/6 . [-6 + 2 dividido(-1 + 1/2)]

Answer 1

a) -8/3+1
-8/3+3/3
-5/3

b) 2x5-3/4
10-3/4
40/4-3/4
37/4

c)3/5-1/2-1/10
6/10-5/10-1/10
0/10
0

d) 5-1/2+1/4
20/4-2/4+1/4
19/4

e) (-1/2)-(-1/6+4/6)
(-1/2)-(3/6)
-1/2-3/6
-3/6-3/6
-6/6
-1

f) 2/4-3/4 dividido 5/5-2/5
-1/4 dividido 3/5
-1/4 / 5/3
-5/12

g)[(-1/2)^3+2(-1)^4] / 1/2
[-1/8+2x1] / 1/2
[-1/8+2] / 1/2
[-1/8+16/8] / 1/2
15/8x2/1
30/8
15/4