integral95
Well-Known Member
- Joined
- Dec 16, 2012
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- 779
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- HSC
- 2013
Some one please send link to the paper thanks.
NESA doesn't allow posting of their papers as they have copyright I've read on another forum but they post the paper fast, should be there tmrwSome one please send link to the paper thanks.
It wasn't that bad to be honest, probably the easiest 16 in a while I reckon...Anyone got a copy of the paper? My student said Q16 was absolutely cooked so I'm keen to have a squizz at it
For the Sina = sinb I'm pretty sure you just had to have them equal each other and then I got something like 3.75m.It was fine tbh. Lost 7 marks defs for the last two qs and the find x for sin a = sin b qs. Hope I get 85+ fml
This is still subject to review, but apparently a GP with r=0 cannot exist to form a limiting sum of 2, as a=2 for that to occur. Thus your series is 2+0+0+0+0,..... Term2/Term1=0/2=0 but Term3/Term2=0/0=undefined. So a GP must have a non-zero common ration, if 'a' is a non-zero number. Which means the answer may be 0<a<4, a is not equal to 2 (when r=0). Pretty sure this question was designed to trick the state though, so I'm not sure how they'll receive it in the marking center. But it is 3 marks, so other than rearrange the question or graphing/determining the range for 2 marks, the other one is likely gained by recognizing the restriction.What did everyone get for the values of 'a' in the limiting sum = 2 question?? I got 0<a<4 but not sure
http://community.boredofstudies.org/1234/mathematics/370130/band-6-cutoff.htmlBand 6 cutoff predictions?
?This is still subject to review, but apparently a GP with r=0 cannot exist to form a limiting sum of 2, as a=2 for that to occur. Thus your series is 2+0+0+0+0,..... Term2/Term1=0/2=0 but Term3/Term2=0/0=undefined. So a GP must have a non-zero common ration, if 'a' is a non-zero number. Which means the answer may be 0<a<4, a is not equal to 2 (when r=0). Pretty sure this question was designed to trick the state though, so I'm not sure how they'll receive it in the marking center. But it is 3 marks, so other than rearrange the question or graphing/determining the range for 2 marks, the other one is likely gained by recognizing the restriction.
The only case where a zero GP may exist is when 'a'=0 i.e. 0,0,0,0,... which doesn't provide a limiting sum of 2.
Yep, as the mathematics you used to attain either answer is correct, as you rounded to 2 sig figs, and they didn't specify to use the rounded value of k in part iii, i.e., through using the directive 'hence', etc. Essentially, if the method's correct, they'll accept the solution, especially considering that sizeable proportion of the 2017 2u/3u cohort would've answered part iii using the rounded figure.I'm also wondering this.
That's the second time you've said that and I still can't find it. If you're not trolling, post a link you absolute fucknuggetanyone who is looking for this years paper it is online at nesa
The syllabus only places restriction |r| < 1 for limiting sumThis is still subject to review, but apparently a GP with r=0 cannot exist to form a limiting sum of 2, as a=2 for that to occur. Thus your series is 2+0+0+0+0,..... Term2/Term1=0/2=0 but Term3/Term2=0/0=undefined. So a GP must have a non-zero common ration, if 'a' is a non-zero number. Which means the answer may be 0<a<4, a is not equal to 2 (when r=0). Pretty sure this question was designed to trick the state though, so I'm not sure how they'll receive it in the marking center. But it is 3 marks, so other than rearrange the question or graphing/determining the range for 2 marks, the other one is likely gained by recognizing the restriction.
The only case where a zero GP may exist is when 'a'=0 i.e. 0,0,0,0,... which doesn't provide a limiting sum of 2.
can you please send us the link to 2017 maths paperanyone who is looking for this years paper it is online at nesa
This is true, we never go over the case of R=0, but then the man spits a good point, 3 marks for that 0 < a < 4 seems a little dodgy.The syllabus only places restriction |r| < 1 for limiting sum