Evaluate
28
Factor
2^{2}\times 7
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\frac{40320}{6!\times 2!}
The factorial of 8 is 40320.
\frac{40320}{720\times 2!}
The factorial of 6 is 720.
\frac{40320}{720\times 2}
The factorial of 2 is 2.
\frac{40320}{1440}
Multiply 720 and 2 to get 1440.
28
Divide 40320 by 1440 to get 28.
Examples
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Matrix
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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