Whakaoti mō y
y=\frac{1}{3^{x}}
Whakaoti mō x (complex solution)
x=-\log_{3}\left(y\right)+\frac{2\pi n_{1}i}{\ln(3)}
n_{1}\in \mathrm{Z}
y\neq 0
Whakaoti mō x
x=-\log_{3}\left(y\right)
y>0
Graph
Tohaina
Kua tāruatia ki te papatopenga
9=y\times 3^{x+2}
Tē taea kia ōrite te tāupe y ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te y.
y\times 3^{x+2}=9
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
3^{x+2}y=9
He hanga arowhānui tō te whārite.
\frac{3^{x+2}y}{3^{x+2}}=\frac{9}{3^{x+2}}
Whakawehea ngā taha e rua ki te 3^{x+2}.
y=\frac{9}{3^{x+2}}
Mā te whakawehe ki te 3^{x+2} ka wetekia te whakareanga ki te 3^{x+2}.
y=\frac{1}{3^{x}}
Whakawehe 9 ki te 3^{x+2}.
y=\frac{1}{3^{x}}\text{, }y\neq 0
Tē taea kia ōrite te tāupe y ki 0.
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