Edexcel M4 Exam Discussion Thread [June 5th] Watch

Gome44
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#161
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#161
(Original post by Davothebigafro)
Predicted grade boundaries anyone?
70 for an A* maybe. The only tricky part was the stability question, but there was a similar one in the review exercise I think
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NathanSE
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#162
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#162
did everyone get pi/3 s for the spring question; first time for instantaneous rest?
I got pi/2. Also anyone know what time we could expect model answers?
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Gome44
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#163
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#163
(Original post by NathanSE)
did everyone get pi/3 s for the spring question; first time for instantaneous rest?
I got pi/2. Also anyone know what time we could expect model answers?
I got π/3. If someone posts the paper I can do model answers
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HashiramaSenju
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#164
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#164
Ive got no idea> By the way how many people take M4 each year. I guess not many. And was the paper tough ?
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c3l6founder
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#165
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#165
u r a ****.
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Gome44
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#166
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#166
(Original post by HashiramaSenju)
Ive got no idea> By the way how many people take M4 each year. I guess not many. And was the paper tough ?
Not really. Certainly one of the easiest papers edexcel have done. Probably means m5 will destroy me though
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Davothebigafro
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#167
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#167
(Original post by Gome44)
70 for an A* maybe. The only tricky part was the stability question, but there was a similar one in the review exercise I think
*Kills self*
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c3l6founder
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#168
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#168
u cocky *******
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Gome44
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#169
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#169
(Original post by Davothebigafro)
*Kills self*
How do you reckon you did?
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Gome44
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#170
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#170
(Original post by c3l6founder)
u cocky *******
Who are you talking to? Me?
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Gallax
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#171
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#171
I thought it was pi......you can't square root -0.25 to get cos(theta), it's not real. Nice try Gome.
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User1206819
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#172
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#172
(Original post by Gome44)
Who are you talking to? Me?
I think he was... there is literally no way the A* boundary will be 70, more in the region of 66-67. what are you smoking mate? you ought to come down from your cocky high. STOP BRAGGING. The difficulty was comparable to june 2013 m4 (UK) so 66 for the A*.
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c3l6founder
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#173
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#173
(Original post by Gome44)
Who are you talking to? Me?
do you want the whole world to know how well you did in M4? do you want a medal for having just done the easiest M4 paper EVER? Get a life you freak.
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shan2097
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#174
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#174
(Original post by NathanSE)
did everyone get pi/3 s for the spring question; first time for instantaneous rest?
I got pi/2. Also anyone know what time we could expect model answers?
yes it was pi/3. x in terms of t should have been 1/6 sin 2t - 1/12 sin 4t, therefore dx/dt = 1/3 cos 2t - 1/3 cos 4t. dx/dt = 0 at instantenous rest therefore cos 2t = cos 4t. 2t = 2kπ +- 4t. at first instantaneous rest k = 1 therefore t = π - 2t 3t = π t = π/3
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Gome44
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#175
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#175
(Original post by Gallax)
I thought it was pi......you can't square root -0.25 to get cos(theta), it's not real. Nice try Gome.
What question?
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NathanSE
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#176
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#176
(Original post by c3l6founder)
do you want the whole world to know how well you did in M4? do you want a medal for having just done the easiest M4 paper EVER? Get a life you freak.
chill out, theres no need to be rude
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User1206819
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#177
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#177
(Original post by Gallax)
I thought it was pi......you can't square root -0.25 to get cos(theta), it's not real. Nice try Gome.
gome's right mate. I'm angry he got it right too... oh well... not worth worrying about now. onto m5!
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Gome44
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#178
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#178
(Original post by User1206819)
I think he was... there is literally no way the A* boundary will be 70, more in the region of 66-67. what are you smoking mate? you ought to come down from your cocky high. STOP BRAGGING. The difficulty was comparable to june 2013 m4 (UK) so 66 for the A*.
I'm sorry, but the relative motion questions were gift marks, and that is the area (including myself) people struggle normally. The stability question was a bit dodgy, but most will be able to pick up 2+ marks for some working. The rest of the paper was standard
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NathanSE
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#179
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#179
(Original post by shan2097)
yes it was pi/3. x in terms of t should have been 1/6 sin 2t - 1/12 sin 4t, therefore dx/dt = 1/3 cos 2t - 1/3 cos 4t. dx/dt = 0 at instantenous rest therefore cos 2t = cos 4t. 2t = 2kπ +- 4t. at first instantaneous rest k = 1 therefore t = π - 2t 3t = π t = π/3
crap I found when x is 0 : P, do you know how mnay marks that part was?
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Gome44
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#180
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#180
(Original post by c3l6founder)
do you want the whole world to know how well you did in M4? do you want a medal for having just done the easiest M4 paper EVER? Get a life you freak.
:yy:
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