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Math problem: how to evaluate (12 4), but 12 and 4 are in a 2x1 matrix?
The problem just says "Evalute" then gives this 2x1 kind of a matrix notation. The 12 and 4 are written vertically within the parentheses kind of like this.
12
( )
4
but the parentheses are larger, with the numbers inside. How to evaluate this?
2 Answers
- SqdancefanLv 76 years ago
A constant matrix is already evaluated. There is nothing you need to do, unless some operation is indicated. Your problem description does not mention any other matrix or matrix operation.
- PaulaLv 76 years ago
That is shorthand for "Combination 12, 4", which you might have seen written as 12C4 or C(12,4). It is:
12! / (8! x 4!)
where 4! = 1x2x3x4, etc
