Evaluate
\sqrt{61}\approx 7.810249676
Quiz
Arithmetic
5 problems similar to:
\sqrt{ { \left(2--4 \right) }^{ 2 } + { \left(0-5 \right) }^{ 2 } }
Share
Copied to clipboard
\sqrt{\left(2+4\right)^{2}+\left(0-5\right)^{2}}
The opposite of -4 is 4.
\sqrt{6^{2}+\left(0-5\right)^{2}}
Add 2 and 4 to get 6.
\sqrt{36+\left(0-5\right)^{2}}
Calculate 6 to the power of 2 and get 36.
\sqrt{36+\left(-5\right)^{2}}
Subtract 5 from 0 to get -5.
\sqrt{36+25}
Calculate -5 to the power of 2 and get 25.
\sqrt{61}
Add 36 and 25 to get 61.
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}