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Eksponen

A.  Pengertian

Bilangan berpangkat atau eksponen dapat dnyatakan dalam bentuk seperti berikut:
ab = c                     a = bilangan pokok          b = pangkat        c = hasil dari perpangkatan

B. Persamaan eksponen

1. af(x) = 1 -> f (x) = 0

2. af(x) = ap -> F (x) = p

3. af(x) = ag(x) -> f (x) = g (x)

4. af(x) = bf(x) -> f (x) = 0

C.  Sifat-sifat dalam eksponen

1. Ax . ay = ax+y
Contoh: 32 x 33 = 32+3 = 35 = 243

2. ax /ay = ax-y
Contoh: 24 x 22 = 24-2 = 22 = 4

3. (ax)y = ax.y
Contoh: (21/4)8 = 21/4 x 8 = 22 = 4

4. (a/b)x = (ax/bx)
Contoh: (2/4)3 = 23/43 = 8/64 = 1/8

D. Pertidaksamaan eksponen

1. Untuk 0 < a < 1 atau a = pecahan
a. af(x) ≥ ag(x) -> f(x) ≤ g(x)
b. af(x) ≤ ag(x) -> F(x) ≥ g(x)

2. Untuk a > 1
a. af(x) ≥ ag(x) -> f(x) ≥ g(x)
b. af(x) ≤ ag(x) -> f(x) ≤ g(x)

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4 Comments

  1. fiki

    August 26, 2010 at 1:52 pm

    :? Aduh kok tetep ga mudeng ya

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  2. dwi

    dwi

    January 9, 2011 at 3:20 pm

    dmna y yg g mudeng, mngkn saya bsa membntu..

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  3. sicah ianatillah

    February 13, 2011 at 3:26 am

    kok cuma sedikit sih materi’a…………………………………………. pdahal lg btuh bgt nih………. : :roll:

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  4. dwi

    dwi

    June 19, 2011 at 4:58 pm

    ya nanti akan ditambah..

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