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JEE Main & Advanced Mathematics Relations Question Bank Mock Test - Relations and Functions

  • question_answer
    If \[{{e}^{f(x)}}=\frac{10+x}{10-x},\,\,\] \[x\in (-10,10)\] and\[f(x)=kf\left( \frac{200x}{100+{{x}^{2}}} \right)\], then k =_____.

    Answer:

    0.5


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