MATH Prob.

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How many three-symbol codes can be formed from the
letters I, S, P, and Y without repetition?

  • MATH Prob. -

    What is 4*3*2?

  • MATH Prob. -

    Can you please show me how you got that answer?

  • MATH Prob. -

    How many three-symbol codes (letter-number-number)
    can be made from the letters S, P, Y, and two digits
    from the set {0, 1, 2,....., 9} without repetition?

  • MATH Prob. -

    As far as your first question, I think bobpursley is referring to 4! called "four factorial."

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