Jawabanmu

Jawaban paling cerdas!
2014-04-19T06:07:56+07:00
bila a + b =5ab, b + c =7bc, c + a = 6ac, berapakah nilai a x b x c ?

Ubah ke bentuk pecahan,a + b = 5ab
(a + b)/ab = 5
1/a + 1/b = 5
1/b + 1/c = 7
1/c + 1/a = 6

Jumlahkan semua,
2(1/a + 1/b + 1/c) = 18
1/a + 1/b + 1/c = 91/c = 4
1/a = 2
1/b = 3
1/(abc) = 24
abc = a x b x c = 1/24

Sukses selalu…!
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