Ketentuan dan Sifat-Sifat Eksponen
16.47
Diposting oleh Melany Christy
KETENTUAN
aP = a . a . a . a . . . . . . . . . . . . . . . . . sampai p faktor
(a dinamakan bilangan pokok, p dinamakan pangkat atau eksponen)
SIFAT-SIFAT
1. ap . aq = ap + q | 5. a0 = 1 |
2. ap . aq = ap - q | 6. a - p = 1/ap |
3. (ap)q = apq | 7. am/n = nÖ(am) |
4. (a.b)p = ap . bp |
contoh:
- 3pq+q . 32p)/(3pq+p . 32q) = (3pq+q+2p)/(3pq+p+2q) = 3p-q
- (0,0001)-1 Ö0,04 = (10-4)-1(0,2) = (104)(0,2) = 2000
- (0,5)2 + 1/5Ö32 + 3Ö0,125 = 0,25 + 1/2 + 0,5 = 1,25
[ket : 32 = 25 ; 0,125 = (0,5)3 ]
- Apabila p = 16 dan q = 27, maka
2p-1/2 - 3p0 + q4/3 = 2(24)-1/2 - 3(24)0 + (33)4/3
= 2(2-2) - 3(1) + 34 = 2-1 -3(1) + 81
= 1/2 - 3 + 81 = 78 1/2
This entry was posted on October 4, 2009 at 12:14 pm, and is filed under
Eksponen,
matematika,
matematika kelas 2,
sma kelas 2
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