OCR FSMQ Additional Maths 6th June 2016 Official Thread

this is how i did it

I still can't believe there was no probability that's my easy marks section nCr button is my best friend...

45?

that's what i got too, it's coz if you imagine stretching the base and the two sides you notice that the angle is largest if you make the base longer and the two sides shorter

The answer for the largest angle B could be was 97.7 (3sf).
You took the lower bound of 12 and 16: 11.5 and 15.5 respectively; and then took the upper bound of 20: 20.5
then use the cosine rule

Nah, but in order to maximise B, cosB has to be as small as possible, doesn't it?

that's what i got too, it's coz if you imagine stretching the base and the two sides you notice that the angle is largest if you make the base longer and the two sides shorter

I found some of the paper okay, but the difficult questions were DIFFICULT. Awful compared to previous papers, and I left two parts of a questions blank and had at least two answers I knew were definitely wrong because different parts of them contradicted each other.

For the car and train one, I said the are at the lines at 11.7 seconds but in the part where you show the car gets to O first, I worked out that it took only 5 seconds to get to O???

What did people get for the area A1=A2 in Q14?

I got the same, was I the only one pushed for time, cos when I looked around everyone was sitting there...

Was it not 97 something degrees as you had to make b and c smaller by 0.5 cm and a larger by 0.5cm. To get largest angle

I got that they were both equal to four. What about you?

Why, just why OCR, out of all the symbols you could have given, why give the one that no one has ever used and takes 10 years to draw - yes, draw, you don't write that kind of bs out.

I got that they were both equal to four. What about you?

I substituted 3 instead of minus 3 in the first part and got 32, then got 4 for the second part- 4 sounded more sensible, so I changed A1 to 4 as well but didn't have time to change the actual working and wasn't sure if it was right anyway... hoping I'll get a mark for saying 4 for A1 even though the working is all wrong