Ashwini Asked a Question
February 5, 2021 2:34 pmpts 30 pts
Let S =A:A = [a,s.s, a, = 0 or 1, Vii2a, =1 vi and )a, =1 VI Then, the number of elements in S is (A) (C) 52 (B) 55 5! (D) 55
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  • Piyush pachauri
    5! is correct answer as for first row you have 5 choices then for second it's 4 choice similarly for last one you have no choice
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  • Satpal singh
    if you are satisfied with this accept this as best answer
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  • Satpal singh
    option c is correct
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  • Satpal singh thankyou
    see this. this is permutation question. for first 1 you have 5 choices in first row. whatever you choose. once you fix a position so for the second row you will have only 4 choi...
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  • Anonymous User
    for first row value 1 has five choice and for second row it has 4 choice
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  • Anonymous User
    option c is correct it is a permutations matrix
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