Will the real TeeEm please stand up!

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Reply 1020

JM-97

Original post by rcmehta

Is it just r = +/- 1/2 for multiple values?

Of course haha, knew I'd forgotten something! Thanks

Reply 1021

rcmehta

Original post by JM-97

Of course haha, knew I'd forgotten something! Thanks

You're welcome :smile:

Extra seems interesting... How many possible values are there?

Reply 1022

TeeEm

ATTENTION for the EXTRA for FRIDAY

there is a typo again but it does not affect the question or the method, just the answers

the way the question is typed you will get as answers 4 and 16/5

the question should read

"find the value of 7cosx+6sinx" in which case you get as answers 2 and 6.

Just to understand how these errors occur.
I had the question originally as you have it but I did not like the 16/5 as the answer.
I improved it so it has integer answers, but I forgot to retype the question.

Reply 1023

username1162972

Original post by TeeEm

So I wasn't wrong and I realised after that -8 was rejected.
I thought i was going wrong somewhere hoenstly. When will your solution be up?

Posted from TSR Mobile

(edited 8 years ago)

Reply 1024

username1162972

ImageUploadedByStudent Room1438374902.633611.jpg

First time i did it i didnt reject cosx=-4/5 hence getting ectran ans of -8.

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Reply 1025

TeeEm

Original post by physicsmaths

First time i did it i didnt reject cosx=-4/5 hence getting ectran ans of -8.

Posted from TSR Mobile

Did you use a calculator?

Reply 1026

username1162972

Original post by TeeEm

Did you use a calculator?

No i got i nice quadratic and nice fractions so bo need. The work is what i have written there.

Posted from TSR Mobile

Reply 1027

TeeEm

12 days to A level results

Question forSaturday 01/08/15
AS Level Maths Upwards

and for those who want that little bit extra,
AS level Maths Upwards required

(edited 8 years ago)

Q32, Saturday 01-08-15.pdf16.1KB

Q32, Saturday 01-08-15, EXTRA.pdf14.4KB

Q32, Saturday 01-08-15, solution.pdf78.0KB

Q32, Saturday 01-08-15, EXTRA, solution.pdf169.7KB

Reply 1028

JM-97

Original post by TeeEm

12 days to A level results

Question forSaturday 01/08/15
AS Level Maths Upwards

and for those who want that little bit extra,
AS level Maths Upwards required

In the first question, I am not sure how to start does PiPi act as a function of a function like f(g(x)) ?

Reply 1029

TeeEm

Original post by JM-97

In the first question, I am not sure how to start does PiPi act as a function of a function like f(g(x)) ?

I am not sure if I fully understand your question but I think If I understood it correctly yes it does.

you apply the innermost product first, then the outermost

Reply 1030

TeeEm

11 days to A level results

Question for Sunday 02/08/15
AS Level Maths Upwards

and for those who want that little bit extra,
AS level Maths Upwards required

(edited 8 years ago)

Q33, Sunday 02-08-15.pdf11.6KB

Q33, Sunday 02-08-15, EXTRA.pdf9.1KB

Q33, Sunday 02-08-15, solution.pdf170.8KB

Q33, Sunday 02-08-15, EXTRA, solution.pdf89.7KB

Reply 1031

math42

Original post by TeeEm

11 days to A level results

Question for Sunday 02/08/15
AS Level Maths Upwards

and for those who want that little bit extra,
AS level Maths Upwards required

For extra

Spoiler

Reply 1032

TeeEm

Original post by 1 8 13 20 42

For extra

Spoiler

looks very familiar... sorry i cannot check I sorting my site and I am all over the place ...

Reply 1033

math42

Original post by TeeEm

looks very familiar... sorry i cannot check I sorting my site and I am all over the place ...

Ah fair enough. I subbed/checked for a few n values so if it's familiar it's probably good, thanks

Reply 1034

TeeEm

Original post by 1 8 13 20 42

Ah fair enough. I subbed/checked for a few n values so if it's familiar it's probably good, thanks

excellent

Reply 1035

TeeEm

ATTENTION

for those who find these questions too easy or are just bored try to solve

cotθ + 3tanφ = 3
3sinθ + 2cosφ = 4

I know the answer because I made it ... but I cannot solve it yet!

Reply 1036

TeeEm

Original post by 1 8 13 20 42

For extra

Spoiler

I just checked
You are correct

Reply 1037

math42

Original post by TeeEm

I just checked
You are correct

Great thanks :smile:

I started with the trig one using a systematic/"normal" approach but the equations get out of hand..

Reply 1038

TeeEm

Original post by 1 8 13 20 42

Great thanks :smile:

I started with the trig one using a systematic/"normal" approach but the equations get out of hand..

they beat me too ... I spend about an hour on them but I was to busy with other things so I threw the towel.

They are so annoying because one would assume if you know the answers and make them balance, surely they cannot be too bad to solve them analytically...

Reply 1039

username1162972

Original post by TeeEm

ATTENTION

for those who find these questions too easy or are just bored try to solve

cotθ + 3tanφ = 3
3sinθ + 2cosφ = 4

I know the answer because I made it ... but I cannot solve it yet!