Evaluate
-\frac{3\sqrt{15}}{14}\approx -0.829925003
Quiz
Arithmetic
5 problems similar to:
\frac { 3 } { 4 } \sqrt { 5 } \div - \frac { 7 } { 2 } \sqrt { 3 }
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\frac{\frac{3}{4}\sqrt{5}\times 2}{-7}\sqrt{3}
Divide \frac{3}{4}\sqrt{5} by -\frac{7}{2} by multiplying \frac{3}{4}\sqrt{5} by the reciprocal of -\frac{7}{2}.
\frac{\frac{3\times 2}{4}\sqrt{5}}{-7}\sqrt{3}
Express \frac{3}{4}\times 2 as a single fraction.
\frac{\frac{6}{4}\sqrt{5}}{-7}\sqrt{3}
Multiply 3 and 2 to get 6.
\frac{\frac{3}{2}\sqrt{5}}{-7}\sqrt{3}
Reduce the fraction \frac{6}{4} to lowest terms by extracting and canceling out 2.
-\frac{3}{14}\sqrt{5}\sqrt{3}
Divide \frac{3}{2}\sqrt{5} by -7 to get -\frac{3}{14}\sqrt{5}.
-\frac{3}{14}\sqrt{15}
To multiply \sqrt{5} and \sqrt{3}, multiply the numbers under the square root.
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}