Whakaoti mō a
a\geq 60
Tohaina
Kua tāruatia ki te papatopenga
80-0.8a+0.3a\leq 50
Whakamahia te āhuatanga tohatoha hei whakarea te 0.8 ki te 100-a.
80-0.5a\leq 50
Pahekotia te -0.8a me 0.3a, ka -0.5a.
-0.5a\leq 50-80
Tangohia te 80 mai i ngā taha e rua.
-0.5a\leq -30
Tangohia te 80 i te 50, ka -30.
a\geq \frac{-30}{-0.5}
Whakawehea ngā taha e rua ki te -0.5. I te mea he tōraro a -0.5, ka huri te ahunga koreōrite.
a\geq \frac{-300}{-5}
Whakarohaina te \frac{-30}{-0.5} mā te whakarea i te taurunga me te tauraro ki te 10.
a\geq 60
Whakawehea te -300 ki te -5, kia riro ko 60.
Ngā Tauira
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Āhuahanga
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whārite paerangi
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Arithmetic
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Poukapa
\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]
whārite Simultaneous
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Whakarerekētanga
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Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}