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Lv 5
? asked in Hiburan dan MusikJajak Pendapat & Survei · 8 years ago

mohon bntuannya.. terima kasih?

Buktikan teorema

1. jika a elemen R , maka

a. (-1) . a = -a

b. -(-a) = a

c. (-1).(-1) = 1

2. a) jika a+b = 0 , maka b= -a

b) jika a bukan sama dengan b dan b elemen R sedemikian sehingga a.b = 1 , maka b = 1/a

c) jika a.b = 0 , maka a=0 atau b=0

makasih

4 Answers

Rating
  • Anonymous
    8 years ago

    bukannya gw sombong atau gak mau ngasih tau nih ya gan, karna gw terlalu genius, gw mau ngasih kesempatan buat ente belajar lebih keras, kalo gw ngasih tau ente berarti gw membodohi ente dong gan..,

    Source(s): just kidding
  • Anonymous
    8 years ago

    percayalah pelajaran seperti jarang dipakai bahkan ga berguna untuk kehidupan sehari-hari

  • chuu
    Lv 6
    8 years ago

    ebuset..pass deh. ane dah 6 tahun ga sekolah. hahaha

  • Aif
    Lv 7
    8 years ago

    pengen pinter?

    Source(s): makanya minum cerebrovit. gkgkgk
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