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Whakaoti mō a_n, n, a, b
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a_{n}=42-4\left(1-1\right)
Whakaarohia te whārite tuatahi. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
a_{n}=42-4\times 0
Tangohia te 1 i te 1, ka 0.
a_{n}=42+0
Whakareatia te -4 ki te 0, ka 0.
a_{n}=42
Tāpirihia te 42 ki te 0, ka 42.
a_{n}=42 n=1 a=2 b=2
Kua oti te pūnaha te whakatau.