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c3 help few small questions watch

1. 1) if the question asks 'what is the range of f,' can i write it like

range f(x) < 2 or do i need to write it as f(x) <2?
or does it not matter?

2) if it asks why is this not an inverse do i need to put it as
f(x)... or can i write just f is not an inverse beacuse...

3) in the mark scheme it says 'Extra +c penalised once throughout paper.' what does this mean?
and when i do the equation uv-/v du/dx dx +c, when i have written out the whole answer do i need to put +c at the end?
2. (Original post by kesh_888)
1) if the question asks 'what is the range of f,' can i write it like

range f(x) < 2 or do i need to write it as f(x) <2?
or does it not matter?

2) if it asks why is this not an inverse do i need to put it as
f(x)... or can i write just f is not an inverse beacuse...

3) in the mark scheme it says 'Extra +c penalised once throughout paper.' what does this mean?
and when i do the equation uv-/v du/dx dx +c, when i have written out the whole answer do i need to put +c at the end?
You would probably get away with just F(x) but why put your self at risk, it takes an extra second to write the word range.

I don't understand your second and third questions.

But, yes you always need to put + c after intergration unless it is a definite integral.
3. 3) just means if there are several indefinite integration questions you only loose a mark for not putting +c the first time you do it, the next ones you don't.
4. (Original post by 2^1/2)
3) just means if there are several indefinite integration questions you only loose a mark for not putting +c the first time you do it, the next ones you don't.
You would have to look at the mark scheme. I would assume that if c has no effect on the answer itself then you would only lose one mark.
5. 2) y=x^2 -3
question> what is the range of this? what are the exact words you would use (meanging can i write this... range f(x) < 3?
6. I don't think they care as long as you show you know what the range is.
7. Can you just put +c after every integration?
8. (Original post by kesh_888)
2) y=x^2 -3
question> what is the range of this? what are the exact words you would use (meanging can i write this... range f(x) < 3?
Wrong

Range of f(x) > -3

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