log_{9}(x)=-2

Lösung

lo g_{9} (x) = - 2

x = \frac{1}{81}

Dezimale

x = 0.01234 \dots

Schritte zur Lösung

lo g_{9} (x) = - 2

Wende die log Regel an

x = \frac{1}{81}

so l v e f or x, ln (y) = ln (x) + c

lo g_{49} (x) = \frac{1}{2}

2 ln (x - 1) - ln (x + 2) = 2 ln (2)

lo g_{x} (16) = - 4

lo g_{x} (\frac{1}{25}) = - 2