OCR MEI C1 Resit 2019 Watch

iDeviceJ
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Did anyone take this exam today? If so, let’s share answers !
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sophierob103
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I got a=-21 and b=42 or the remainder theorem question, I found the last part of the last question hard tho
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iDeviceJ
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I got a=-13 and b=18! and yeh that bit was fiddly, for the coordinates i got something like (3root3 + root7, -3root3 + root7) or something along those lines
(Original post by sophierob103)
I got a=-21 and b=42 or the remainder theorem question, I found the last part of the last question hard tho
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ls23sl
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Last question I think is (-2root3, root3) , (2root3, -root3). I think everything was alright apart from the rearrangment question which i found dodgy


(Original post by iDeviceJ)
I got a=-13 and b=18! and yeh that bit was fiddly, for the coordinates i got something like (3root3 + root7, -3root3 + root7) or something along those lines
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Conorduffy17
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What did people get for very last question
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daturastramonium
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I got like two values for K, they were something like plus/minus root 3 but im not sure exactly. But I couldnt get the coordinates from it
(Original post by Conorduffy17)
What did people get for very last question
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Conorduffy17
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Yh i got those values for for k but couldn't find the coordinates either
(Original post by daturastramonium)
I got like two values for K, they were something like plus/minus root 3 but im not sure exactly. But I couldnt get the coordinates from it
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alevel.student99
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wait i got root 3 and minus root 3 as x, and subbed these into y=2x to find the y coordinate, is this a different question?

for the very last question i used the discriminant and got k=+/- root 75
(Original post by Conorduffy17)
Yh i got those values for for k but couldn't find the coordinates either
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alevel.student99
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What did everyone get for the rearranging question? I think I got b=50/c^3

For the bionomial question I got -3920 if i remember correctly
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daturastramonium
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I definitely got that for the binomial. And b was something over C to a power but im not sure if i got 50
(Original post by alevel.student99)
What did everyone get for the rearranging question? I think I got b=50/c^3

For the bionomial question I got -3920 if i remember correctly
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daturastramonium
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There was a 75 there too i remember 😂
(Original post by alevel.student99)
wait i got root 3 and minus root 3 as x, and subbed these into y=2x to find the y coordinate, is this a different question?

for the very last question i used the discriminant and got k=+/- root 75
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Conorduffy17
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Root 75? i think i just put k as +/- radius which was root 15 but that was just a guess

(Original post by daturastramonium)
There was a 75 there too i remember 😂
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iDeviceJ
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I got k= +/- root75, and then simplified to 5root3

then subbed this into circle thing to get points of intersection, which was pre fiddly

i got 50/c^3 for the rearrangement

for E i got (-1,6)

p=3.5 and p=-8

5^3.5

binomial was -3920

5C3 = 10
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alevel.student99
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I got all of these too, but I didn’t know we had to find coordinates after finding k for the last question omg?? How many marks was that worth? I only found K
(Original post by iDeviceJ)
I got k= +/- root75, and then simplified to 5root3

then subbed this into circle thing to get points of intersection, which was pre fiddly

i got 50/c^3 for the rearrangement

for E i got (-1,6)

p=3.5 and p=-8

5^3.5

binomial was -3920

5C3 = 10
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alevel.student99
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For the proof question for (i) I got <— and i think i wrote it’s false because all quadrilaterals have four angles or smth, and for (ii) <—> but i can’t remember what this one was asking 😭

Fir the ratio of lengths question i got root5:3root5

For the first part of the x^2+y^2=15 question i said it was a circle with centre (0,0) and radius root 15
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iDeviceJ
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ratio of lengths i got 1:9. One length^2 was 5 and the other was 45 so ratio was 1:9.

For the first part of circle q i described circle, said radius and centre and the axis intercepts
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alevel.student99
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I found AB:BC for the lengths, which gave me root5:root45, i didn’t square them, do you think i’ll still get the marks??
(Original post by iDeviceJ)
ratio of lengths i got 1:9. One length^2 was 5 and the other was 45 so ratio was 1:9.

For the first part of circle q i described circle, said radius and centre and the axis intercepts
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