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Tohaina
Kua tāruatia ki te papatopenga
400\pi \times 0\times 25
Tātaihia te 20 mā te pū o 2, kia riro ko 400.
0\pi \times 25
Whakareatia te 400 ki te 0, ka 0.
0\pi
Whakareatia te 0 ki te 25, ka 0.
0
Ko te tau i whakarea ki te kore ka hua ko te kore.
Ngā Tauira
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Whakarerekētanga
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