OCR (not MEI) C1 - Wednesday 13th May 2015

Original post by Abbie2511

It had to be in the form 5 to the power something, I got 5^(9/2)

Yeah that's what I got, at least I got something right

Reply 101

Parallex

Original post by naomi288

I got 5^4.5 for the last indices question

Posted from TSR Mobile

that's right

Reply 102

TCO

Original post by AstroNandos

I got that for whatever question or was :biggrin:

I got something like -3/16, I think I did it wrong

Yeah well I got -16/3

Posted from TSR Mobile

Reply 103

F31

Original post by blinin7

What expansion did people get for simultaneous equations. The rest was a breeze however I spent a good 30 min + solving :

3x^2 + 20x - 22 = 0

As y=-2x-5 so I just substituted. I think I got it completely wrong but I tried 5 different ways and came to the same expansion which I couldn't simplify...

Really hope grade boundaries are not higher than last year :/

Yea i spent ages on it!!!!

Reply 104

exoticmedgirl_2017

Original post by naomi288

I got 5^4.5 for the last indices question

Posted from TSR Mobile

same

I got -1/48👀👀

Original post by iloverobkardash

Also, answers for the differentiate X^(1/3) where X=8 or something?

was that find the gradient of

x^{1/3}

when x=8?

I got -1/48 for that

Reply 107

HecTic_H

Original post by TCO

Yeah well I got -16/3

Posted from TSR Mobile

I got - 1/48 :'(
And for the perpendicular through the midpoint I got 6x-8y-29 = 0 :frown:

Reply 108

ayshax

Original post by Dentist214

Great, lost 5 marks!!!! I got 11, no wonder I couldn't get the stationary point, I've done so bad

I got 11 too and it worked for the stationary point aswell. I'm not sure if it was right or wrong. The equation worked to get 4 again for the point and the unknown one too

Reply 109

username1271026

3

What was the simultaneous equation answer?

Reply 110

Brian luiz

Original post by yazmin123

what did you get for the simultaneous equations??

x=2
y=1

x=14/3
y=-13/3

Reply 111

core1maths

The last indices question was 5^9/2 for those asking and the differentiation one was -1/48.

Reply 112

rich1334

11

Original post by exoticmedgirl_2017

6x+4y-29?? Something like that... Might be the wrong question..? Sorry...

I put 6x-8y-29 I think

Reply 113

User10102929

Original post by TCO

Yeah well I got -16/3

Posted from TSR Mobile

Got -1/48 for this I think

Reply 114

Brian luiz

Original post by HecTic_H

I got - 1/48 :'(
And for the perpendicular through the midpoint I got 6x-8y-29 = 0 :frown:

I got both of those answers, im sure they are right.

Reply 115

Dentist214

Original post by lily9666768

yeah you just need 240 ums overall. you could get a C and two A's and still get an A

That gives me hope, would they need to be high A's in c2 and s1 like 65/72? Obviously depending on grade boundaries but never seen them higher than that

Reply 116

exoticmedgirl_2017

Original post by AstroNandos

I got that for whatever question or was :biggrin:

I got something like -3/16, I think I did it wrong

I got what you got :smile:

Reply 117

lily9666768