walter-hyde
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POTENSSIT

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POTENSSIT. n kpl. eksponentti kantaluku a n = a ·a · · · ·a. E.1. 3 4 = 3 · 3 · 3 · 3 = 81. Huom. Miljoona = 10 6 Miljardi = 10 9 Biljoona = 10 12 Triljoona = 10 18. POTENSSIN LASKUSÄÄNTÖJÄ. E.2. a) x 3 · x 2 = x 3+2 = x 5.

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POTENSSIT

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  1. POTENSSIT n kpl eksponentti kantaluku an = a ·a · · · ·a E.1. 34 = 3 · 3 · 3 · 3 = 81 Huom. Miljoona = 106 Miljardi = 109 Biljoona = 1012 Triljoona = 1018

  2. POTENSSIN LASKUSÄÄNTÖJÄ E.2. a) x3 · x2 = x3+2 = x5 1) am ∙ an = am+n 3) (ab)n = an bn c) (2x)3 = 23x3 = 8x3 5) (am)n = amn e) (x3)4 = x12

  3. Kymmenpotenssimuoto Kerroin on ykkösen ja kymmenen välillä sekä eksponentti kokonaisluku a·10n, missä 1a10 ja nZ Tarkista laskin 290 1,24 ·1027 2-90 8,08 ·10-28 32 000 000 000 000 / 16 000 000 000 = 2000 3,2 EXP 13 / 1,6 EXP 10 3,2 x 1013 / (1,6x1010) E.3. a) 320 000 000 000 = 3,2 · 1011 b) 0,000 000 232 = 2,32 · 10-7

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