Paper 12 maths

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does anybody remember the binomial questions???
i forgot but i got a really weird answer!
root over
 
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yeag
yeah do you remember the question? was the sum of the two terms was 90??????
i amm soo anoooyed how can I make soo many silliy mistakes????
 
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does any one remember the equation of the curve for question 1 nd the limits?
 
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dnt know the equation but the answer was 12 pi for sure.what was the answer to trigonometry questions?
r my answers for the metal plate question correct?
r yu talking abt the one with identities ?
i solveed th first part but got stuck on the second nd i got 18.4 i think
wat was yurs?
nd wat was the rate of change?
 
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r my answers for the metal plate question correct?
r yu talking abt the one with identities ?
i solveed th first part but got stuck on the second nd i got 18.4 i think
wat was yurs?
nd wat was the rate of change?
area was actually 145.97 so rounds off to 146 (3 sf)
perimeter is correct...

rate of change was 0.105
and btw it was root 61 for the unit vector...
 
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thats correcct too ;)
i am really surprised to see that the gt of p1 is less than p3.relatively p1 is far much easier than p3 but many people including myself make silly mistakes!!!
 
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