Calcule as expressões: a) (-1/2)² + 2/5 = b) (-1/2)³ + 1 = c) (2/5)² x (-1/2)³ = d) 2 x (-1/3)² – (1/2) =

Question

Calcule as expressões:
a) (-1/2)² + 2/5 =
b) (-1/2)³ + 1 =
c) (2/5)² x (-1/2)³ =
d) 2 x (-1/3)² – (1/2) =
e) 1 + (+2/5) – ( ½)² =

in progress 0
Hưng Khoa 3 years 2021-07-31T04:58:56+00:00 1 Answers 14 views 0

Answers ( )

  1. phucdien
    0
    2021-07-31T05:00:25+00:00
    Reply

    Step-by-step explanation:

    a, 1/4+2/5=13/20

    b,-1/8+1=7/8

    c, 4/25×-1/8=-1/50

    d, 2×1/9-1/2=2/9-1/2=-5/18

    e, 1+2/5-1/4=7/5-1/4=23/20

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )