Evaluate
3.5
Factor
\frac{7}{2} = 3\frac{1}{2} = 3.5
Quiz
Arithmetic
5 problems similar to:
0.35+0.22+0.08+0.5+0.01+0.5+0.02+0.15+0.08+0.5+0.84+0.13+0.1+0.02
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0.57+0.08+0.5+0.01+0.5+0.02+0.15+0.08+0.5+0.84+0.13+0.1+0.02
Add 0.35 and 0.22 to get 0.57.
0.65+0.5+0.01+0.5+0.02+0.15+0.08+0.5+0.84+0.13+0.1+0.02
Add 0.57 and 0.08 to get 0.65.
1.15+0.01+0.5+0.02+0.15+0.08+0.5+0.84+0.13+0.1+0.02
Add 0.65 and 0.5 to get 1.15.
1.16+0.5+0.02+0.15+0.08+0.5+0.84+0.13+0.1+0.02
Add 1.15 and 0.01 to get 1.16.
1.66+0.02+0.15+0.08+0.5+0.84+0.13+0.1+0.02
Add 1.16 and 0.5 to get 1.66.
1.68+0.15+0.08+0.5+0.84+0.13+0.1+0.02
Add 1.66 and 0.02 to get 1.68.
1.83+0.08+0.5+0.84+0.13+0.1+0.02
Add 1.68 and 0.15 to get 1.83.
1.91+0.5+0.84+0.13+0.1+0.02
Add 1.83 and 0.08 to get 1.91.
2.41+0.84+0.13+0.1+0.02
Add 1.91 and 0.5 to get 2.41.
3.25+0.13+0.1+0.02
Add 2.41 and 0.84 to get 3.25.
3.38+0.1+0.02
Add 3.25 and 0.13 to get 3.38.
3.48+0.02
Add 3.38 and 0.1 to get 3.48.
3.5
Add 3.48 and 0.02 to get 3.5.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}