Evaluate
7\sqrt{5}+19\approx 34.652475842
Quiz
Arithmetic
5 problems similar to:
\sqrt{ { 8 }^{ 2 } +36+0 } + \sqrt{ 1+16+64 } + \sqrt{ 81+100+64 }
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\sqrt{64+36+0}+\sqrt{1+16+64}+\sqrt{81+100+64}
Calculate 8 to the power of 2 and get 64.
\sqrt{100+0}+\sqrt{1+16+64}+\sqrt{81+100+64}
Add 64 and 36 to get 100.
\sqrt{100}+\sqrt{1+16+64}+\sqrt{81+100+64}
Add 100 and 0 to get 100.
10+\sqrt{1+16+64}+\sqrt{81+100+64}
Calculate the square root of 100 and get 10.
10+\sqrt{17+64}+\sqrt{81+100+64}
Add 1 and 16 to get 17.
10+\sqrt{81}+\sqrt{81+100+64}
Add 17 and 64 to get 81.
10+9+\sqrt{81+100+64}
Calculate the square root of 81 and get 9.
19+\sqrt{81+100+64}
Add 10 and 9 to get 19.
19+\sqrt{181+64}
Add 81 and 100 to get 181.
19+\sqrt{245}
Add 181 and 64 to get 245.
19+7\sqrt{5}
Factor 245=7^{2}\times 5. Rewrite the square root of the product \sqrt{7^{2}\times 5} as the product of square roots \sqrt{7^{2}}\sqrt{5}. Take the square root of 7^{2}.
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}