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REGEL

VOORBEELD

^alog b = c <=> a^c = b
Voorwaarden:
a>0 en a¹1 en c>0

⁵log 125 = 3 , want 5³ = 125

^alog 1 = 0 (want a° = 1)

^alog a = 1 (want a¹ = a)

^alog b =

log b
log a

⁵log 12 =

log 12
log 5

= 1,54

^alog b^p = p.^alog b

⁵log 4³ =

3.⁵log 4 =

log 4
log 5

3.0,861 = 2,58