NTSE Sample Paper NTSE SAT Practice Test-16

  • question_answer
    What are the roots of the given equation? \[{{(a+b+x)}^{-1}}={{a}^{-1}}+{{b}^{-1}}+{{x}^{-1}}\]

    A) a, b                              

    B) --a, b

    C) a,-b                              

    D)  a,-b

    Correct Answer: D

    Solution :

    [d] \[\frac{1}{a+b+x}=\frac{1}{a}+\frac{1}{b}+\frac{1}{x}\] Clearly x = - a and x = - b satisfy the equation


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