MCQOPTIONS
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| 1. |
If (1 × 2 × 3 × 4 ........ × n) = n!, then 15! - 14! - 13! is equal to ___? |
| A. | 14 × 13 × 13! |
| B. | 15 × 14 × 14! |
| C. | 14 × 12 × 12! |
| D. | 15 × 13 × 13! |
| Answer» E. | |