CALCULE
A) (- 0,5) . 1/2
B) 2 . (- 1/9)
C) (- 2/5) . (- 3/7)
D) (+ 3/7) . (- 1/2)
E) (- 1/3) . 2 . (- 3)
F) (- 2) . (- 1/3 + 5/3)
Respostas
respondido por:
41
a
( - 0.5) * 1/2
( - 5/10) * 1/2 = - 5/20 = - 1/4 ***
b
( 2/1) * ( - 1/9) = - 2/9 ****
c
( - 2/5) * ( - 3/7) = + 6/35****
d
( + 3/7) * ( -1/2 ) = - 3/14 ***
e
( - 1/3) * 2/1 * ( -3/1) = + 6/3 = + 2 ****
f
( - 2/1) * ( -1/3 + 5/3) = ( - 2/1 ) + ( + 4/3) = (-2/1)* ( 4/3 ) = - 8/3 ***
( - 0.5) * 1/2
( - 5/10) * 1/2 = - 5/20 = - 1/4 ***
b
( 2/1) * ( - 1/9) = - 2/9 ****
c
( - 2/5) * ( - 3/7) = + 6/35****
d
( + 3/7) * ( -1/2 ) = - 3/14 ***
e
( - 1/3) * 2/1 * ( -3/1) = + 6/3 = + 2 ****
f
( - 2/1) * ( -1/3 + 5/3) = ( - 2/1 ) + ( + 4/3) = (-2/1)* ( 4/3 ) = - 8/3 ***
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