AQA Core 4

For the binomial expansion question, the first part was expanding to the power or 2/3 then you had to find using your answer to this, 100 to the power of 1/3 which tried to trick us -.-

I did this but got 4 as the last co-ordinate for some reason

What did people get for the tan(a+b) integers

Which is 10^2/3

Like someone else said, i got 3 and 4 as the integers, but the top one i got the sign the other way around, which i just couldn't figure out.....

I got the sign the wrong way round too! and so did loads of my mates :/ in the end I went back through changing the signs trying to blag it.. hope it doesn't backfire! :L

I eventually got the last part of binomial, did first parts, and forgot to do the 8 ^2/3 when i took it out of brackets, Luckily i realised when i did the last part and it was very different answer to actual cube root 100.

there was hardly any marks for this thou, same with all the questions i could do haha.
Although at least i did get the 9 marker one, that was surprisingly easy.

Struggled on the exponential growth question after first couple easy marks.
and couldn't do the trig identities, what was all that about, i'm usually really good at them lol.

Didn't even get time for the 6 mark vector question.
I hope people did struggle cos otherwise i'm so not gonnna get the A i need, especially after struggling on C3 aswel.

this was definitely not a good weekend haha

I managed to get it the right way round, but by the sounds of it no one else did

Was the question cube root 100? because i thought it was, the one for estimating the binomial expansion for it?

yeah it was, was a bit of a sneaky one haha

I reckon we're all lucky because they have only JUST started INTRODUCING high scoring questions, people aren't used to it, and the grade boundaries i believe should reflect that.

I used tan b=-1/root3 with tan a 4/3, using these with the angle formula. I may have got one of the sign the wrong way round, but it was definitly 3 and 4

On that bloody tan (a + b) question, I got the same thing but the signs didn't match up. Checked it about 5 times, I even subbed in the values of a and b and my answer got the same thing, wtfffffff I had like m =3 n=4 or the other way round?