Whakaoti mō k
k\geq -10
Tohaina
Kua tāruatia ki te papatopenga
14k+44+83k\leq 100k+74
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te -7k-22.
97k+44\leq 100k+74
Pahekotia te 14k me 83k, ka 97k.
97k+44-100k\leq 74
Tangohia te 100k mai i ngā taha e rua.
-3k+44\leq 74
Pahekotia te 97k me -100k, ka -3k.
-3k\leq 74-44
Tangohia te 44 mai i ngā taha e rua.
-3k\leq 30
Tangohia te 44 i te 74, ka 30.
k\geq \frac{30}{-3}
Whakawehea ngā taha e rua ki te -3. I te mea he tōraro a -3, ka huri te ahunga koreōrite.
k\geq -10
Whakawehea te 30 ki te -3, kia riro ko -10.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
whārite paerangi
y = 3x + 4
Arithmetic
699 * 533
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
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Whakarerekētanga
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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}