Whakaoti mō P
P=\frac{90}{ST}
T\neq 0\text{ and }S\neq 0
Whakaoti mō S
S=\frac{90}{PT}
P\neq 0\text{ and }T\neq 0
Tohaina
Kua tāruatia ki te papatopenga
STP=90
He hanga arowhānui tō te whārite.
\frac{STP}{ST}=\frac{90}{ST}
Whakawehea ngā taha e rua ki te ST.
P=\frac{90}{ST}
Mā te whakawehe ki te ST ka wetekia te whakareanga ki te ST.
PTS=90
He hanga arowhānui tō te whārite.
\frac{PTS}{PT}=\frac{90}{PT}
Whakawehea ngā taha e rua ki te TP.
S=\frac{90}{PT}
Mā te whakawehe ki te TP ka wetekia te whakareanga ki te TP.
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