11!/(2!2!2!)=11!/6=6652800 [It would be 11! if all of the letters were different, but you divide by two for each of the three letters which appear twice: m,a,t.]
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121
The letters of the word SQUARE can be arranged in 6! = 720 orders.
raisesiresrises------------------------------------They can be arranged in 5!=120 ways.
In 6!, or 720 ways.
There are 9!/2! = 181,440 ways.