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bija089 [108]
3 years ago
7

Evaluate the permutation. 6P2 15 30 36

Mathematics
1 answer:
dolphi86 [110]3 years ago
5 0

Answer:

30

Step-by-step explanation:

Using the definition

nP_{r} = \frac{n!}{(n-r)!}

where n ! = n(n - 1)(n - 2)(n - 3)... × 3 × 2 × 1

Thus

6P_{2} = \frac{6!}{4!} = \frac{6.5.4.3.2.1}{4.3.2.1} ← cancel 4.3.2.1 on numerator/ denominator, leaving

      = 6 × 5

      = 30

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