The Answer to the Question
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Here's the Solution to this Question
DISCRETE is a 8 letter word, If there were no repeating letters, the answer would have been simply be
However since there are repeating letters, we need to divide to remove the duplicates accordingly.
There are one D, one I, one S, one C, one R, two E and one T. So only E comes twice.
Therefore, the total number of arrangement of word DISCRETE will be .