Whakaoti mō n
n\in \mathrm{R}
Tohaina
Kua tāruatia ki te papatopenga
180n-360=180n-360
Whakamahia te āhuatanga tohatoha hei whakarea te 180 ki te n-2.
180n-360-180n=-360
Tangohia te 180n mai i ngā taha e rua.
-360=-360
Pahekotia te 180n me -180n, ka 0.
\text{true}
Whakatauritea te -360 me te -360.
n\in \mathrm{R}
He pono tēnei mō tētahi n ahakoa.
Ngā Tauira
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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