Wjec c3 / c4 2017

Scroll to see replies

Reply 80

williamsae

I also had -6!

Reply 81

williamsae

Can anyone remember the ln(x) question??

Reply 82

luciemorgan1999

Original post by PedanticStudent

The logic behind it is "the range of f must satisfy the domain of g".... Right?

At least this logic worked for every other question like it.

Posted from TSR Mobile

Ahhh it's probably -11 then

Reply 83

Elliottmanwaring

Original post by KappaPride123

I did this: f(2)(lowest value of F(x))=8+k.
8+k has to be in Domain of g(x) therefore 8+k≥-3 and K≥-11.

Exactly what I did

Reply 84

PedanticStudent

Original post by Elliottmanwaring

Exactly what I did

Fingers crossed then. Exemplar script should be available between 3pm-8pm today.

Posted from TSR Mobile

Reply 85

Elliottmanwaring

Original post by PedanticStudent

Fingers crossed then. Exemplar script should be available between 3pm-8pm today.

Posted from TSR Mobile

Where will it be? @mathemateg? They didn't do them for C1/2 so they may not do one?

Reply 86

PedanticStudent

Original post by Elliottmanwaring

Where will it be? @mathemateg? They didn't do them for C1/2 so they may not do one?

C1 and C2 was done. He just tweets them out in Welsh so you might have missed it.

Posted from TSR Mobile

Reply 87

Elliottmanwaring

Original post by PedanticStudent

C1 and C2 was done. He just tweets them out in Welsh so you might have missed it.

Posted from TSR Mobile

Yeah I'm fluent in welsh- must have just missed them. Thanks!

Reply 88

armathematics

armathematicsblog.wordpress.com has c1 and c2 answers...will have c3 model answers later today

Reply 89

Elliottmanwaring

Original post by armathematics

armathematicsblog.wordpress.com has c1 and c2 answers...will have c3 model answers later today

Any idea of a time plz?

Reply 90

classicalmusic

Original post by PedanticStudent

Same thing. Multiply top and bottom by - 1 and you get the - 1/1+x^2

did you have to multipLy by -1?

Reply 91

armathematics

Original post by Elliottmanwaring

Any idea of a time plz?

Waiting for quarantined students to finish paper, so I've not seen it yet. Will answer it and upload ASAP...hopefully tonight, tomorrow morning at the latest.

Reply 92

Elliottmanwaring

Original post by armathematics

Waiting for quarantined students to finish paper, so I've not seen it yet. Will answer it and upload ASAP...hopefully tonight, tomorrow morning at the latest.

Thank you very much- much appreciated.

Reply 93

robinback

Does anyone have the paper?

Reply 94

Geomatrix123

Original post by BeccAhhh

How did everyone find it ? What was the answer to Q1 part B ?

I got -1.4... what about you ? Overall, I found the paper quite nice how did any of you guys find it ?

Reply 95

44ddddd

645981994bc6254710b633adda3a0931
b3910a917a5bf0d072ae3bb34d3caed2
a051e810428b9e7f8712c98c3c6b6de5

add those numbers after a gyazo link for the paper, it wont let me post images

Reply 96

cowseatmilk

Original post by 44ddddd

645981994bc6254710b633adda3a0931
b3910a917a5bf0d072ae3bb34d3caed2
a051e810428b9e7f8712c98c3c6b6de5

add those numbers after a gyazo link for the paper, it wont let me post images