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Railways R.R.C. (Chennai) Solved Paper Held on 17-11-2013

  • question_answer
    If x=5, y=2, then the value of\[({{x}^{y}}+{{y}^{x}})\]is?

    A) 75                                

    B) 76

    C) 57                    

    D) 56

    Correct Answer: C

    Solution :

    If          x = 5 and y = 2 Then,    \[{{x}^{y}}+{{y}^{x}}={{5}^{2}}+{{2}^{5}}\] = 25+32=57


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