1)
log(6) 1/2 - log(6) 1/72 =
(..) - przy podstawie, liczba na dole
2)
log(2) 5=a
log(2) 6=b
oblicz: log(2) 15 =
a)
log₆¹/₂-log₆¹/₇₂=log₆(¹/₂:¹/₇₂)=log₆⁷²/₂=log₆36=log₆6²=2
b)
log₂5=a
log₂6=b
log₂15=log₂5+log₂6-log₂2=a+b-1
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a)
log₆¹/₂-log₆¹/₇₂=log₆(¹/₂:¹/₇₂)=log₆⁷²/₂=log₆36=log₆6²=2
b)
log₂5=a
log₂6=b
log₂15=log₂5+log₂6-log₂2=a+b-1