Evaluate
\sqrt{77}-\sqrt{66}\approx 0.650925983
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\sqrt{11}\sqrt{7}-\sqrt{11}\sqrt{6}
Use the distributive property to multiply \sqrt{11} by \sqrt{7}-\sqrt{6}.
\sqrt{77}-\sqrt{11}\sqrt{6}
To multiply \sqrt{11} and \sqrt{7}, multiply the numbers under the square root.
\sqrt{77}-\sqrt{66}
To multiply \sqrt{11} and \sqrt{6}, multiply the numbers under the square root.
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
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Matrix
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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}