Hope you guys are having a good holiday… any help you need on the workbook exercises, just shout here.
Posted by: shsmaths | July 20, 2008
Year 11 into 12 Help
Posted in Mr Brewin's Classes, Year 11, Year 12
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Well, Mr B, looks like they are coping very well on their own and don’t need any help – unless of course they are leaving it till the day before we go back! No, surely not …………. perish the thought
By: Mrs Tibble on July 29, 2008
at 4:11 pm
Hello. Just a few questions about the huge number of exercises I have been trying to work through..
For 6. (Further work with Indicies) Ex 1F part f. the question is just printed 3x^0.5 X 4x^- .. is that meant to be ^-1 or something else..
and for 8. (Rationalising the Denominator) Ex 1H do we need to just rationalise the denominator and then simplify them rather than solving them?
Finally, do all of the graphs need to be drawn accurately or can the first ones just be sketched..
Thank you!
I’m nearly finished! yay!
Hope you’re all having a good summer.
By: Grace Mullally on August 22, 2008
at 11:40 am
Hi Grace,
Welcome back to the blog
Hope you’ve had a good summer and congrats on your fantastic GCSE results.
Now down to the serious stuff – whose turn is it to make the tea??
Ex1F Q1f: second power is -0.5
Ex1H Q8 rationalise and/or simplify? You can’t ’solve’ as there is no unknown and it isn’t an equation!!! (You knew that
)
Are the graphs Ex 2A? If so, as it says from x=-4 to +4, you are expected to do a table of values and plot the points.
See you soon
The Tea Lady
By: Mrs Tibble on August 25, 2008
at 6:43 pm
Thank you very much.
yes, I knew that :\
I think my brain has shrunken over the summer.. uh oh.
Have a good end of the summer
Thank you
Grace.
By: Grace Mullally on August 25, 2008
at 8:32 pm
hello
hope everyone has had a good holiday
i was reading the front of the little booklet and i saw it said that the answers to the questions were attacted. however, i couldnt find any answers. so i was wondering if it would be possible please for them to be sent to me so that i can check my answers?
jacynth
By: Jacynth on August 29, 2008
at 9:03 am
Oops! Sorry J and everyone else – I did mean to scan them and do so, but obviously didn’t. What I’ll do is try to get them on this site by Monday. That OK?
BTW – well done everyone on an excellent set of GCSE results! 19 A* – thank you Div 1!
By: Mr Brewin on August 29, 2008
at 2:22 pm
yah thats fine thanks
could you help me with a few questions then please?
so far i am stuck on Ex2B questions 21 and 22. i may be being very stupid but i cant see how they can be sloved via factorising.
also on Ex 1H questions 14 and 16, i have rationalised the demoniators but i seem to get a very long top parts of the fraction (sorry i cant remember what thats called :s)
for example:
Ex 1H question 14:
i have got (12-4√2 + 3√5 – √2√5) / 11
but i think i can simplify the top bit more and im just not quite sure how.
please could you help?
thankyou
By: Jacynth on August 29, 2008
at 3:52 pm
yah thats fine thanks
could you help me with a few questions then please?
so far i am stuck on Ex2B questions 21 and 22. i may be being very stupid but i cant see how they can be sloved via factorising.
also on Ex 1H questions 14 and 16, i have rationalised the demoniators but i seem to get a very long top parts of the fraction (sorry i cant remember what thats called :s)
for example:
Ex 1H question 14:
i have got (12-4√2 + 3√5 – √2√5) / 11
but i think i can simplify the top bit more and im just not quite sure how.
please could you help?
thankyou
By: Jacynth on August 29, 2008
at 3:53 pm
oops ok i didnt mean to write that twice
sorry!
By: Jacynth on August 29, 2008
at 3:53 pm
Don’t worry! Just to let you know – I’ve seen this and will reply (if Ms T doesn’t sooner!) but got to go out to theatre, so can’t right now!
By: Mr Brewin on August 29, 2008
at 5:05 pm
Hi Jacynth,
Sorry, only just got in!
In 1HQ14, take common factor out of first 2 terms and common factor out of last 2 terms and you’ll then get a bracket common factor to tidy it up.
Tea Lady
By: Mrs Tibble on August 29, 2008
at 5:22 pm
Q21 and 22 – leave your answers in surd form (see examples 6 and 7)
By: Mrs Tibble on August 29, 2008
at 5:24 pm
What she said
By: Mr Brewin on August 29, 2008
at 9:16 pm
lol
By: Mrs Tibble on August 30, 2008
at 9:35 am
thankyou
would it be possible to have the answers aswell please?
By: Jacynth on September 2, 2008
at 6:52 am
I have an issue with surds:
when rationalizing a surd can one also simplify it in the process
e.g. sqrt8 + sqrt7 divided by sqrt8 + sqrt7
can i simplify the 8 = 2 x sqrt2??
does that make sense??
By: Deola on September 9, 2008
at 9:33 pm