II. Evaluate the following permutations. 11. $ _6P_2 $ 12. $ _7P_3 $ 13. $ _8P_4 $ 14. $ _9P_5 $ 15. $ _{15}P_{15} $ 16. $ _4P_3 \cdot _6P_4 $ 17. $ _8P_6 \cdot _{10}P_8 $ 18. $ _{10}P_7 \cdot _7P_6 $ 19. $ \frac{_9P_3}{_8P_4} $ 20. $ \frac{_{10}P_7}{_8P_6} $
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Pz: There are 2 letters, so the number of permutations is 2! = 2. Show more…
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