Evaluate
\frac{3\sqrt{19}}{4}\approx 3.269174208
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\frac{3\sqrt{7}}{2}\times \frac{\sqrt{133}}{14}
Calculate the square root of 4 and get 2.
\frac{3\sqrt{7}\sqrt{133}}{2\times 14}
Multiply \frac{3\sqrt{7}}{2} times \frac{\sqrt{133}}{14} by multiplying numerator times numerator and denominator times denominator.
\frac{3\sqrt{7}\sqrt{7}\sqrt{19}}{2\times 14}
Factor 133=7\times 19. Rewrite the square root of the product \sqrt{7\times 19} as the product of square roots \sqrt{7}\sqrt{19}.
\frac{3\times 7\sqrt{19}}{2\times 14}
Multiply \sqrt{7} and \sqrt{7} to get 7.
\frac{21\sqrt{19}}{2\times 14}
Multiply 3 and 7 to get 21.
\frac{21\sqrt{19}}{28}
Multiply 2 and 14 to get 28.
\frac{3}{4}\sqrt{19}
Divide 21\sqrt{19} by 28 to get \frac{3}{4}\sqrt{19}.
Examples
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{ 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}