Hi all, just a quick one.
I've been going berserk with practice tests for the maths exams I've got coming up.
One question asked me to find the derivative and second derivative of a function. I did it, and simplified the answer.
I got it correct, but the mark scheme, for both derivatives, says for each, "correct unsimplified" for the final mark. (first derivative was 3 marks, second derivate 2 marks.)
The question paper doesn't mention anything at all about whether I'm allowed to simplify it or not. The question literally just says:
i) find dy/dx
ii) find d2y/dx2
So what's the deal?! I got both correct, but why the mark scheme only has this specific mention of 'unsimplified' - what's the difference anyway?!
For those with a deeper interest, it's AQA PC1 Jan'10, Q3a)
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What if I simplify my answer? (Mark scheme only mentions 'unsimplified'). watch
- Thread Starter
- 03-01-2013 06:58
- Community Assistant
- 03-01-2013 08:39
Your answer is fine. You just went further than you needed to.