Swastika posted an Question
June 09, 2021 • 13:17 pm 30 points
  • IIT JAM
  • Biotechnology (BT)

C. is 0 in how many ways can one write the elements 1, 2, 3, 4 in a sequence x, x2, x3, x4 with i v ? a. 9 c. 11 b. 10 d. 12

C. is 0 In how many ways can one write the elements 1, 2, 3, 4 in a sequence x, X2, X3, X4 with i V ? A. 9 C. 11 B. 10 D. 12

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  • Abhijeet Gaurav best-answer

    See the condition here State that i=\ i. That means that one element used would go on missing in the next. So leaving one in 1st we get 3 & then in 2nd we use the one left and 2 other and then 3rd only one Will be unique and one Will be left so it's 1 & in last one unique so it's 1.

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