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Tohaina

-\sqrt{38}i
Tauwehea te -38=38\left(-1\right). Tuhia anō te pūtake rua o te hua \sqrt{38\left(-1\right)} hei hua o ngā pūtake rua \sqrt{38}\sqrt{-1}. Hei tōna tikanga, ko te pūtake rua o -1 ko i.
-i\sqrt{38}
Whakareatia te -1 ki te i, ka -i.