pliis bantuin
ini tugas matematika....
ini tugas matematika....
Jawab:
Bab 1
1). 23 + (-13) = 23 - 13 = 10
2) 27 - (-23) + 50 = 27 + 23 + 50 = 100
3). 36 - 26 : 2 = 36 - 13 = 23
4). 24 : (-3) x 5 = (-8) x 5 = -40
5). -12 x (-5) - (-60) = 60 + 60 = 120
Bab 2
1). a. Anggota A = ( 1,2,3,4,5,6 )
b. Banyak elemen A = n(A) = 6
2). Diketahui
S = ( -1,0,1,2,3,4,5,6,7,8,9,10 )
A = ( 1,3,5,7,9 )
B = ( 2,3,5,7 )
a. A gabungan B = ( 1,2,3,5,7,9 )
b. A irisan B = ( 3,5,7 )
c. A - B = ( 1,9 )
d. A komplemen = ( -1,0,2,4,6,8,10 )
e. (A gabungan B) komplemen = ( -1,0,4,6,8,10 )
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