-160-158-156-...-2+0+2+...+100
Matematika
violitara1
Pertanyaan
-160-158-156-...-2+0+2+...+100
1 Jawaban
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1. Jawaban keiko9
(-160-158-156.. -2) x-1=2+4+... 160
160+2=162=162/ps
jml bil=(160-2: 2) +1=80: 2=40 PS
40psx162=6480
648x-1=-6480
2+4+... +100
100+2=102=102/ps
jml bil=(100-2: 2) +1=50, 50: 2=25 PS
25ps x 102=2550
-6480+2550=-3930