how do you find the domain/range of y=cos(e^-x)?

how do you find the domain/range of y=cos(e^-x) ??

2 Answers

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  • 9 years ago

    domain: all real numbers (the domain of both an exponential function and cos are all real numbers)

    range: [-1 , 1] -- this is the range of cos u

  • ?
    Lv 5
    9 years ago

    x= 0, 1, 2 --ifninity are domain

    and range is

    when x=0 ; e^0 =and y = cos1

    when x= infinity; e^-infinity =0 and cos0 =1

    these are some range values

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