Logarithmengesetze Flashcards

1
Q

Logarithmengesetz bei Produkten

A

Logb (x*y)= logbx +logby

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2
Q

Quotienten Logarithmen

A

Logb x/y = logb x-logb y

            = -logb y/x
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3
Q

Log1

A

0

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4
Q

Logb 1/x

A

-logb x

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5
Q

Summen und Differenzen bei Logarithmus

A

Ausklammern bis Produkt

Logb (x+y)= logbx +logb(1+y/x)

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6
Q

Logb(x^r)

A

r*logbx

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7
Q

Logb n#x

A

=logb(x^1/n)= 1/nlogbx

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