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# Mark scheme error? watch

1. I'm hoping this is a mark scheme error:
For part (b) I get:

But the markscheme gets

In the past, whenever I blame the text for being wrong, It turns out I'm wrong

Thank you for any help

Edit: just to be clear, I did what the mark scheme did up untill that last line. (the markscheme gives two equations, then puts them together to find

If you want the question (but I thought the mark scheme would be enough) here it is
2. might be helpful to post the question
3. Never mind what I posted, misread the question
4. (Original post by boner in jeans)
might be helpful to post the question
But the ms gives the two equations. It's just solving isn't it?
5. (Original post by hello calum)
I'm hoping this is a mark scheme error:
For part (b) I get:

But the markscheme gets

In the past, whenever I blame the text for being wrong, It turns out I'm wrong

Thank you for any help

Edit: just to be clear, I did what the mark scheme did up untill that last line. (the markscheme gives two equations, then puts them together to find

If you want the question (but I thought the mark scheme would be enough) here it is

you appear to be correct
6. Mark scheme says which is clearly a transcription error, and as you and others have pointed out, it should be
7. (Original post by hello calum)
But the ms gives the two equations. It's just solving isn't it?
sorry, misread the first equation yes what you've got is right

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