[SUGGESTED SOLUTIONS] Exam 1 and 2 Worked Solutions

[Zoomzoom]

Not sure but for 10d)iii. Could the ans be 1/2 at k=8

[BubbleWrapMan]

Not sure but for 10d)iii. Could the ans be 1/2 at k=8

For 4diii. you mean? 16/3 is correct.

[Zoomzoom]

Sorry yes that

[Zoomzoom]

Why cant it be 8? Since k is between [5,8]

[BubbleWrapMan]

k=8 gives the maximum area.

[Zoomzoom]

Oh shoot i mixed them around. Sigh...another few marks gone

[AsianNerd]

dat feeling when you find the correct tangent for last question but then enter it wrong in calculator and lose the next 6 marks 

[Damoz.G]

dat feeling when you find the correct tangent for last question but then enter it wrong in calculator and lose the next 6 marks 

ORRR that feeling when you GUESS the tangent equation (and get it correct) but don't continue on with the "guessed" equation. 

[silverpixeli]

haha yeah, got the gradient and stuffed up the area function, forfeiting the last 6 marks. I realised my mistake but only had time to save 4 of the 6

[arush002]

haha yeah, got the gradient and stuffed up the area function, forfeiting the last 6 marks. I realised my mistake but only had time to save 4 of the 6

You'll get half marks for the rest for giving method though. I did the same thing 

[Damoz.G]

You'll get half marks for the rest for giving method though. I did the same thing 

Half marks? The only time you get half marks is if one assessor gives a mark and the other doesn't. But if its one assessor, the full thing has to be correct to get the one mark, otherwise they won't give you the mark.

[arush002]

Half marks? The only time you get half marks is if one assessor gives a mark and the other doesn't. But if its one assessor, the full thing has to be correct to get the one mark, otherwise they won't give you the mark.

Sorry, let me rephrase. I meant method marks. Even if your solution to 4d)i is incorrect and you find the min/max by making deriv=0 then you will get the method marks but not the answer mark.