Methods question!!

[srxmos]

-

[crystallisation]

Do you happen to have the answer?
I'm not sure if I did this right so I don't want to show you wrong working out haha

[Escobar]

i attached a solution
[e]
i forgot to write a dx on the 2nd line
also, 'c' should not be needed as it asks for an antiderivative. however, i do not think they take marks off for including it

[crystallisation]

So the 'c' isnt necessary?
This is what I got

[likeneverbefore]

hi there just plus c is enough as it is just an unknown constant

[Sine]

an antiderivitive ask for a single +c value so you could assume that it 0 and hence not include it.

However marking schemes may change year by year so the most safe option is to write + c (shows the assessor you are aware of the constant of integration) and then say "therefore an antiderivitive is" _________  (answering the question directly).

Past years have indicated you don't need to say +c for "an antiderivitive" so just don't include it and assume 0

So the 'c' isnt necessary?
This is what I got

-c looks weird so i'd probably just change c to c1 -> c2 when manipulating 
Also you changed c to -c but didn't change it when dividing by 3 it would be best to keep it consistent.
Not sure whether you would actually lose marks but you will definitely not lose marks if you just keep changing the c-c1,c2 .

[srxmos]

THANK YOU GUYS 🏽🏽🏽