Finite Math Examples

Find the Number of Possibilities 20 choose 20
Step 1
Evaluate using the formula .
Step 2
Subtract from .
Step 3
Simplify .
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Step 3.1
Cancel the common factor of .
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Step 3.1.1
Cancel the common factor.
Step 3.1.2
Rewrite the expression.
Step 3.2
Expand to .
Step 3.3
Divide by .