Find number of ways of selection of one or more letters from AAAABBCCCDEF(i) there is no restriction

  Рет қаралды 7

Ankit Kumar

Ankit Kumar

13 күн бұрын

Find number of ways of selection of one or more letters from AAAABBCCCDEF
(i) there is no restriction.
(ii) the letters A & B are selected atleast once.
(iii) only one letter is selected.
(iv)  atleast two letters are selected

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