Evaluate
38
Factor
2\times 19
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5+5+4+3+2+5+3+4+3+4
Add 2 and 3 to get 5.
10+4+3+2+5+3+4+3+4
Add 5 and 5 to get 10.
14+3+2+5+3+4+3+4
Add 10 and 4 to get 14.
17+2+5+3+4+3+4
Add 14 and 3 to get 17.
19+5+3+4+3+4
Add 17 and 2 to get 19.
24+3+4+3+4
Add 19 and 5 to get 24.
27+4+3+4
Add 24 and 3 to get 27.
31+3+4
Add 27 and 4 to get 31.
34+4
Add 31 and 3 to get 34.
38
Add 34 and 4 to get 38.
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\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]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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