Whakaoti mō x, y, z
x=1
y=2
z=3
Tohaina
Kua tāruatia ki te papatopenga
y=-2x+z+1
Me whakaoti te 2x+y-z=1 mō y.
x-2\left(-2x+z+1\right)+2z=3 3x-2\left(-2x+z+1\right)+z=2
Whakakapia te -2x+z+1 mō te y i te whārite tuarua me te tuatoru.
x=1 z=7x-4
Me whakaoti ēnei whārite mō x me z takitahi.
z=7\times 1-4
Whakakapia te 1 mō te x i te whārite z=7x-4.
z=3
Tātaitia te z i te z=7\times 1-4.
y=-2+3+1
Whakakapia te 1 mō te x me te 3 mō z i te whārite y=-2x+z+1.
y=2
Tātaitia te y i te y=-2+3+1.
x=1 y=2 z=3
Kua oti te pūnaha te whakatau.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
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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]
whārite Simultaneous
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Whakarerekētanga
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Whakaurunga
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}