Evaluate
\frac{\sqrt{393}}{4}\approx 4.9560569
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\sqrt{\frac{121}{16}+1+16}
Calculate \frac{11}{4} to the power of 2 and get \frac{121}{16}.
\sqrt{\frac{121}{16}+\frac{16}{16}+16}
Convert 1 to fraction \frac{16}{16}.
\sqrt{\frac{121+16}{16}+16}
Since \frac{121}{16} and \frac{16}{16} have the same denominator, add them by adding their numerators.
\sqrt{\frac{137}{16}+16}
Add 121 and 16 to get 137.
\sqrt{\frac{137}{16}+\frac{256}{16}}
Convert 16 to fraction \frac{256}{16}.
\sqrt{\frac{137+256}{16}}
Since \frac{137}{16} and \frac{256}{16} have the same denominator, add them by adding their numerators.
\sqrt{\frac{393}{16}}
Add 137 and 256 to get 393.
\frac{\sqrt{393}}{\sqrt{16}}
Rewrite the square root of the division \sqrt{\frac{393}{16}} as the division of square roots \frac{\sqrt{393}}{\sqrt{16}}.
\frac{\sqrt{393}}{4}
Calculate the square root of 16 and get 4.
Examples
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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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}