Jawabanmu

2014-08-03T11:27:31+07:00
= -8/12 x (1/2-1/2).2
= 8/12 x0.2
=8/12 x0 = 0

 


2014-08-03T11:31:32+07:00
-8/12 × (1/3)² 
-8/12 × 2/6
-16/72 (disederhanakan)
= -2/9 

maaf kalo salah :)