Whakaoti mō n
n\geq 0
Pātaitai
Algebra
- 1 \geq 4 - 2 n - 5
Tohaina
Kua tāruatia ki te papatopenga
-1\geq -1-2n
Tangohia te 5 i te 4, ka -1.
-1-2n\leq -1
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa. Ka huri tēnei i te aronga o te tohu.
-2n\leq -1+1
Me tāpiri te 1 ki ngā taha e rua.
-2n\leq 0
Tāpirihia te -1 ki te 1, ka 0.
n\geq 0
Ko te otinga o ngā tau e rua ko ≤0 ina ko ≥0 tētahi, ā, ko ≤0 tētahi. Ina ko -2\leq 0, ko ≥0 rawa a n.
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}