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# C4 Edexcel Full Worked Solutions 2016 Watch

1. (Original post by MathsAndChess)
Should be an A* assuming your other modules can make it up to 480 over the six modules.

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i would be so chuffed if i managed to get it!ahhh i hope so! thanks frienddd
2. What were the marks for each question?????
3. (Original post by Nightinwind)
friends, for q 3b, i worked out gradient right and everything and set it to 0 then stupidly got -66-3pie/22+pie as my answer, how many marks would i get from 4?
I got minus too
4. hey, how many marks would I lose on question 3 if I did not put dy/dx after I differentiated the cos pi? I differentiated all the rest correctly, but this meant I also would have got part b wrong as well?
5. (Original post by amyanderly14)
hey, how many marks would I lose on question 3 if I did not put dy/dx after I differentiated the cos pi? I differentiated all the rest correctly, but this meant I also would have got part b wrong as well?
3

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6. Hey, can anyone say what 67/75 and C3 and 67-70/75 in C4 would probably be as a grade? If my other UMS adds up to 480 will that be an A* or an A?
7. (Original post by Ri.Bal)
Hey, can anyone say what 67/75 and C3 and 67-70/75 in C4 would probably be as a grade? If my other UMS adds up to 480 will that be an A* or an A?
You might scrape an A*

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8. (Original post by MathsAndChess)
You might scrape an A*

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Thank you, appreciate the response.
9. (Original post by Ri.Bal)
Hey, can anyone say what 67/75 and C3 and 67-70/75 in C4 would probably be as a grade? If my other UMS adds up to 480 will that be an A* or an A?
For 7.b,can you do y=8 minus the equation of the curve instead? Limits 0 to 17.5?
10. (Original post by harshbrule)
For 7.b,can you do y=8 minus the equation of the curve instead? Limits 0 to 17.5?
No

The integration method would have looked like this

Since the limits differ, a single integral solution can not be performed.

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