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anonymous

  • 5 years ago

what is the domain and range of the combined function : y=0.95^x/cosx?

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  1. dumbcow
    • 5 years ago
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    well the only domain restriction is when cos(x) = 0 -> x not equal 0 or pi

  2. dumbcow
    • 5 years ago
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    oops i was thinking sin, it should be x ne pi/2, and 3pi/2

  3. anonymous
    • 5 years ago
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    how do we figure this out? :S

  4. dumbcow
    • 5 years ago
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    i believe the range is All Real Numbers, as the function approaches +- infinity at npi +pi/2

  5. anonymous
    • 5 years ago
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    and y cannot equal to 0

  6. dumbcow
    • 5 years ago
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    oh right, yes because .95^x can never be zero :)

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