Question
Forming Words $\quad$ How many different 11 -letter words (real or imaginary) can be formed from the letters in the word MATHEMATICS?
Step 1
This is because we can put 11 different letters in the first place, 10 different letters in the second, 9 in the third, and so on. This is based on the multiplication principle. So, we have $11!$ ways. Show more…
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