Author Topic: Cie math P1  (Read 2900 times)

Offline thecandydoll

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Cie math P1
« on: September 18, 2010, 02:48:06 pm »
Paper 1 Pure math !
Summer :May/JUNE 2010
Paper 12.
Question 11,How do solve the whole thing I dont get it :(

elemis

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Re: Cie math P1
« Reply #1 on: September 18, 2010, 02:57:52 pm »
Okay. Hang on.

elemis

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Re: Cie math P1
« Reply #2 on: September 18, 2010, 03:04:29 pm »
(i) 4-3sinx = 2

Hence, 4-2=3sinx  I re-arranged the equation

2/3 = sinx 

sin-1 2/3 = 41.8, 138.2 degrees

Converting to radians gives: 0.730 and 2.41 respectively.

elemis

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Re: Cie math P1
« Reply #3 on: September 18, 2010, 03:25:31 pm »
(ii) Basically you reflect a regular sine graph in the x axis. Then multiply each Y coordinate by 3.

After that vertically move the graph by 4 units.

elemis

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Re: Cie math P1
« Reply #4 on: September 18, 2010, 03:35:32 pm »
(iii)

Basically they are asking you to find the range of y coordinates for which the Sine Graph has no x values.

Looking at my picture we can see that the graph has no point below the y coordinate of 1 or above the y coordinate of 7.

Hence k > 7 , k < 1

elemis

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Re: Cie math P1
« Reply #5 on: September 18, 2010, 03:36:31 pm »
I dont know the others :P

Freaked12

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Re: Cie math P1
« Reply #6 on: September 18, 2010, 04:36:31 pm »
Ah we meet again Lioness  :P

If a function is to have inverse,it must be one - one function.The graph of such function can only be crossed by a line parallel to the x axis once only .

As our Lioness Ari drew in his Graph the highest value by  which the graph is parallel to x axis is 3/2 pi

elemis

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Re: Cie math P1
« Reply #7 on: September 18, 2010, 04:45:24 pm »
Ah we meet again Lioness  :P

If a function is to have inverse,it must be one - one function.The graph of such function can only be crossed by a line parallel to the x axis once only .

As our Lioness Ari drew in his Graph the highest value by  which the graph is parallel to x axis is 3/2 pi

Subconsciously you know I am a male. Your just a scatter brain. :P

Freaked12

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Re: Cie math P1
« Reply #8 on: September 18, 2010, 04:51:04 pm »
Sub consciously or consciously I Doubt you are a Lion at all.

Maybe a Cub but thats about it.

Meet the Rogue Lion that will in time kill the heard's leader and finish off the cubs.  :-\

I am so Jobless today  :-\

Offline Aadeez || Zafar

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Re: Cie math P1
« Reply #9 on: September 18, 2010, 04:59:43 pm »
u both can just stop fighting with arguments as ur wepons



Yeh BaaabuRaao ka style hein!

elemis

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Re: Cie math P1
« Reply #10 on: September 18, 2010, 05:01:48 pm »
Sub consciously or consciously I Doubt you are a Lion at all.

Maybe a Cub but thats about it.

Meet the Rogue Lion that will in time kill the heard's leader and finish off the cubs.  :-\

I am so Jobless today  :-\

You sound drunk...

Offline S.M.A.T

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Re: Cie math P1
« Reply #11 on: September 18, 2010, 07:17:36 pm »
Here :)
« Last Edit: October 11, 2010, 11:55:46 pm by asiftasfiq93 »


"A man's life is interesting primarily when he has failed - I well know. For it's a sign that he tried to surpass himself." Clemenceau, Georges

Freaked12

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Re: Cie math P1
« Reply #12 on: September 18, 2010, 09:16:36 pm »
Give +rep to me yeah.i am dieing to get a rep

Offline Aadeez || Zafar

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Re: Cie math P1
« Reply #13 on: September 19, 2010, 05:45:56 am »
rep r not asked for
they r given if any users want
so dont force them to give +rep



Yeh BaaabuRaao ka style hein!

nid404

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Re: Cie math P1
« Reply #14 on: September 19, 2010, 08:04:37 am »
Give +rep to me yeah.i am dieing to get a rep

Do not ask for rep...against the rules  ::)