\left\{ \begin{array} { l } { 2 A + 2 B + 0 \cdot 8 C = 27 } \\ { 2 D + 2 B + 0 \cdot 8 C = 33 } \\ { 2 D + 2 A + 2 B = 38 } \\ { 2 A + 2 B + 2 E = 45 } \\ { 2 A + 2 B + 0.8 C + 2 D + 2 E = 62 } \end{array} \right.
Selesaikan untuk A, B, C, D, E
A=2.5
B=11
C=7.5
D=5.5
E=9
Kongsi
Disalin ke papan klip
Contoh
Persamaan kuadratik
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometri
4 \sin \theta \cos \theta = 2 \sin \theta
Persamaan linear
y = 3x + 4
Aritmetik
699 * 533
Matriks
\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]
Persamaan serentak
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Pembezaan
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Pengamiran
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Had
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}