KVPY Sample Paper KVPY Stream-SX Model Paper-24

  • question_answer
    \[\propto \] & \[f(1)=k\] then \[\sum\limits_{r=1}^{n}{f(r)}=\]

    A) \[{{k}^{n}}-1\]

    B) \[{{k}^{n}}\]

    C) \[{{k}^{n}}+1\]

    D) None of these

    Correct Answer: D

    Solution :

    \[y=1\]\[\Rightarrow f(x)=f{{(1)}^{x}}\,\,\,i.e.\,\,\,f(x)={{k}^{x}}\]


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