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- Thread starter Jeff12341234
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Unless it was specified that dy/dt=0 on some particular interval, then your solution should be valid for all t.

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I just don't get how a function can have a domain when it's just a constant...

- #4

Mute

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I just don't get how a function can have a domain when it's just a constant...

If your function is y(t) = 3/4, it means that for any t you give the function as an input, the function returns the value 3/4. So, the domain is whatever range of values of t you are allowed to put into your function. It doesn't matter that your function happens to return a constant in this case.

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thanks

- #6

Mark44

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Every function has a domain.

I just don't get how a function can have a domain when it's just a constant...

I wouldn't use the word "range" when you're talking about the domain, because of confusing the issue with the function's range.If your function is y(t) = 3/4, it means that for any t you give the function as an input, the function returns the value 3/4. So, the domain is whatever range of values of t you are allowed to put into your function. It doesn't matter that your function happens to return a constant in this case.

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