how many ways to form elements of 3digit from {1,2,3} repetition allowed
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Step-by-step explanation:
if repetition is allowed the numbers are
111,112,113,121,123,131,132,132,133,211,212,213,221,222,223,231,232,233,311,312,313,321,322,323,331,332,333
total=27
hope it helps you
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