-
Best of luck to the class of 2024 for their HSC exams. You got this! Let us know your thoughts on the HSC exams here -
YOU can help the next generation of students in the community! Share your trial papers and notes on our Notes & Resources page
Can I use Extension 1 methods in the 2 unit exam? (1 Viewer)
- Thread starter FLYHAWK14
- Start date
tommykins
i am number -e^i*pi
- Joined
- Feb 18, 2007
- Messages
- 5,730
- Gender
- Male
- HSC
- 2008
回复: Can I use Extension 1 methods in the 2 unit exam?
I don't see why not, unless they outline that you must you a specific method.
I can't see a question where you'd opt 3unit knowledge over 2unit?
Care to provide an example please?
I don't see why not, unless they outline that you must you a specific method.
I can't see a question where you'd opt 3unit knowledge over 2unit?
Care to provide an example please?
tommykins
i am number -e^i*pi
- Joined
- Feb 18, 2007
- Messages
- 5,730
- Gender
- Male
- HSC
- 2008
回复: Re: 回复: Can I use Extension 1 methods in the 2 unit exam?
Although I have seen some stuff that required 4u knowledge - ie. integrate ln x.
TBH i've never witnessed a 2u integral that needs substitution.FLYHAWK14 said:
Although I have seen some stuff that required 4u knowledge - ie. integrate ln x.
A question like that would generally have some sort of lead in, though.
Like: differentiate xlnx.
They would actually be trying to test if you understand that differentiation and integration are almost inverses of each other.
I think there is no reason why you couldn't use MX1 techniques in 2 unit. But you should be able to do the questions without using them.
Like: differentiate xlnx.
They would actually be trying to test if you understand that differentiation and integration are almost inverses of each other.
I think there is no reason why you couldn't use MX1 techniques in 2 unit. But you should be able to do the questions without using them.
Just.Snaz
Member
- Joined
- Jun 11, 2008
- Messages
- 300
- Gender
- Female
- HSC
- 2008
Yes you can. You can do whatever you want as long as the question doesn't specify.FLYHAWK14 said:
However, in the HSC, I highly doubt they'll give a question that might advantage the people doing 3 unit over the people doing only 2.
wendus
krawr.
- Joined
- Mar 26, 2007
- Messages
- 653
- Gender
- Female
- HSC
- 2008
Re: 回复: Re: Can I use Extension 1 methods in the 2 unit exam?
i wouldn't recommend using 3u methods for 2u papers unless you're so so desperate.
and they wouldn't give you a question requiring 3u knowledge in a 2u papers anyway. you should be able to solve all 2u questions using 2u methods.
i wouldn't recommend using 3u methods for 2u papers unless you're so so desperate.
and they wouldn't give you a question requiring 3u knowledge in a 2u papers anyway. you should be able to solve all 2u questions using 2u methods.
Aaron.Judd
Member
- Joined
- Aug 20, 2008
- Messages
- 372
- Gender
- Male
- HSC
- 2008
Re: 回复: Re: Can I use Extension 1 methods in the 2 unit exam?
Yes, you are permitted to, although there is normally a quicker, easier way to do it using 2 Unit methods.
Yes, you are permitted to, although there is normally a quicker, easier way to do it using 2 Unit methods.
Re: 回复: Re: Can I use Extension 1 methods in the 2 unit exam?
If it was a definite integral, you can work it out by using the fact that exp and log are inverses of each other, so you integrate x=e^y along the y-axis and then subtract this area from the rectangle that you can make using the limits of integration (I hope that made sense, it would be easier to explain with a picture.)
That's about the only way that I can think of using 2-unit techniques.
In some past HSC papers they also use integrals like that to test numerical integration (Simpson's or trapezoidal rule). But of course, in that case, it should be clear from the question what they're asking.
Was it a definite or indefinite integral?tommykins said:
If it was a definite integral, you can work it out by using the fact that exp and log are inverses of each other, so you integrate x=e^y along the y-axis and then subtract this area from the rectangle that you can make using the limits of integration (I hope that made sense, it would be easier to explain with a picture.)
That's about the only way that I can think of using 2-unit techniques.
In some past HSC papers they also use integrals like that to test numerical integration (Simpson's or trapezoidal rule). But of course, in that case, it should be clear from the question what they're asking.
conics2008
Active Member
- Joined
- Mar 26, 2008
- Messages
- 1,228
- Gender
- Male
- HSC
- 2005
Re: 回复: Re: Can I use Extension 1 methods in the 2 unit exam?
you know u are allowed to and you wont get mark down for it but your just complicating the process of finddin the answer..
you should know for a fact that they are not expecting you to use it.. ill give you an example..
I think this came in the exam in the 3unit one...
it said S from 1 to 0 cos^-1(x)
keep in mind this is inverse.. find the area from 1 to 0
using 3unit knowledge NOT 4unit...
you know u are allowed to and you wont get mark down for it but your just complicating the process of finddin the answer..
you should know for a fact that they are not expecting you to use it.. ill give you an example..
I think this came in the exam in the 3unit one...
it said S from 1 to 0 cos^-1(x)
keep in mind this is inverse.. find the area from 1 to 0
using 3unit knowledge NOT 4unit...