Will the real TeeEm please stand up!

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Reply 800

aersh8

Original post by TeeEm

It is in a nice strategic/geopolitical spot (best plot in Europe), alive, kicking and well.

I hope your perfect spot is safe from today's fires then

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Reply 801

TeeEm

Original post by aersh8

I hope your perfect spot is safe from today's fires then

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my neighborhood got burned 2 years ago so there is nothing to burn. Houses are made of concrete here, so they do not burn.

Reply 802

aersh8

Original post by TeeEm

my neighborhood got burned 2 years ago so there is nothing to burn. Houses are made of concrete here, so they do not burn.

I see, but the damage from the flames can still be devastating (most houses are indeed concrete, except for my school so hopefully the fires don't reach it even though it's in the same area).

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Reply 803

TeeEm

Original post by aersh8

My holiday home 2 hours drive, west of Athens. I hope your school is ok.

Reply 804

Gome44

Original post by TeeEm

My holiday home 2 hours drive, west of Athens. I hope your school is ok.

Hi, bit random, but how do you solve this recurrence relation:

g(3)=3, g(n+1)=g(n)+n-1

For my 'P.I', I tried g(n)=λn+μ, but this doesn't work, so I tried g(n)=λn^2 +μn

Is this correct to do?

Reply 805

TeeEm

Original post by Gome44

Hi, bit random, but how do you solve this recurrence relation:

g(3)=3, g(n+1)=g(n)+n-1

For my 'P.I', I tried g(n)=λn+μ, but this doesn't work, so I tried g(n)=λn^2 +μn

Is this correct to do?

it works exactly the same way as ODEs, so if the "PI" is part of the CF you multiply by n.

I need to think (and I am updating my site now) but g(n+1)=g(n)-1 is a simple AP

Reply 806

Gome44

Original post by TeeEm

it works exactly the same way as ODEs, so if the "PI" is part of the CF you multiply by n.

I need to think (and I am updating my site now) but g(n+1)=g(n)-1 is a simple AP

Ok thanks, just checked wolfram and the formula I obtained using λn^2 +μn is correct :smile:

Reply 807

TeeEm

Original post by Gome44

Ok thanks, just checked wolfram and the formula I obtained using λn^2 +μn is correct :smile:

I just finished my site too, food and next I will do your question (for my own keeps)

Reply 808

TeeEm

26 days to A level results

Question for Saturday 18/07/15
AS Maths Upwards
(a few messy surd questions coming up as I wrote 4 new questions yesterday)

and for those who want that little bit extra,
....

(edited 8 years ago)

Q19, Saturday 18-07-15.pdf10.8KB

Q19, Saturday 18-07-15, EXTRA.pdf11.7KB

Q19, Saturday 18-07-15, solution.pdf105.7KB

Q19, Saturday 18-07-15, EXTRA, solution.pdf188.0KB

Reply 809

Krollo

Original post by TeeEm

Very nice first question, a good variant on the nested radical imo. I'll have to look at the second later :ahee:

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Reply 810

TeeEm

25 days to A level results

Question for Sunday 19/07/15
AS Maths Upwards

and for those who want that little bit extra,
...

(edited 8 years ago)

Q20, Sunday 19-07-15.pdf13.6KB

Q20, Sunday 19-07-15, EXTRA.pdf21.7KB

Q20, Sunday 19-07-15, solution.pdf231.1KB

Q20, Sunday 19-07-15, EXTRA, solution.pdf242.4KB

Reply 811

Gilo98

Original post by TeeEm

25 days to A level results

Question for Sunday 19/07/15
AS Maths Upwards

and for those who want that little bit extra,
...

just to clarify, is the extra accessible to A2 students? will have a go if so but looks rather foreign at first sight.

Hope you're enjoying your holiday, I'm back now so be prepared for questions asking for help :wink:

Reply 812

TeeEm

Original post by Gilo98

the extra would normally require up to all the FP units.

which EXTRA are you trying to do?

Reply 813

Gilo98

Original post by TeeEm

the extra would normally require up to all the FP units.

which EXTRA are you trying to do?

The one you jus posted. Quoted it below.

Original post by TeeEm

25 days to A level results

Question for Sunday 19/07/15
AS Maths Upwards

and for those who want that little bit extra,
...

Reply 814

TeeEm

Original post by Gilo98

The one you jus posted. Quoted it below.

requires hyperbolic function integration (EDEX FP3)

Reply 815

Gilo98

Original post by TeeEm

requires hyperbolic function integration (EDEX FP3)

OK thanks, no wonder i didn't have a clue lol. Normal one looks very interesting anyway...I'll have a stab at that.

Reply 816

TeeEm

Original post by Gilo98

OK thanks, no wonder i didn't have a clue lol. Normal one looks very interesting anyway...I'll have a stab at that.

collect these PDFs (the solution versions) as they may be handy one day.

Reply 817

Gilo98

Original post by TeeEm

collect these PDFs (the solution versions) as they may be handy one day.

I have been saving a few tbh including some of the early ones. Saved one the other day - some integration Q about Lucy??. I still have that Q with powers of x and y. I said I'd do it this weekend when I got back. Saved the original with no solution so wont be tempted to look at answer. I aim to make completing your daily Q part of my daily routine over the next few weeks....