\sum 0.2 = 0.4
Whakaoti mō Σ_0
Σ_{0}=2
Tohaina
Kua tāruatia ki te papatopenga
Σ_{0}=\frac{0.4}{0.2}
Whakawehea ngā taha e rua ki te 0.2.
Σ_{0}=\frac{4}{2}
Whakarohaina te \frac{0.4}{0.2} mā te whakarea i te taurunga me te tauraro ki te 10.
Σ_{0}=2
Whakawehea te 4 ki te 2, kia riro ko 2.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
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