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show that the function f;R-R given …

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show that the function f;R-R given by f(x) =x*3is innective

    • Posted by Girish Sharma 7 years, 7 months ago

    CBSE > Class 12 > Mathematics
    • 1 answers

    Satyam Mani 7 years, 7 months ago

    Since the derivative of f(x) is 3x^2. It is always positive for any x €R. Hence f(x) is one-one.

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