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     EduGorilla 
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    Let function f : R  R be defined by f(x) = cos x for x  R. Then f is

    Options :-

    1. one to one and onto
    2. one to one but not onto
    3. onto, but not one to one
    4. neither one to one nor onto
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Reply To: Let function f : R  R be defined by f(x) = cos x for x  R. Then f is….
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