Edexcel Maths Paper 2008 (Calculator) - I'm DEAD!

[Coldplay]

I see, I put 3 and 7, I guessed, I've never done it before so.

Gutted.

[Mitch4?]

I'm pretty good at remebering all the questions, so if anyone has an enquiry about one just message me

[Coldplay]

What about the one before it, I think it was a cosine question, had to figure out the angle.

[Mitch4?]

I think it was about 75 degrees. not 100% though, haha.
cosine rules are really boring

[Plank]

What about the one before it, I think it was a cosine question, had to figure out the angle.

yeah that was the cos rule.
plug all the sides into this formula: cosA = b^2 + c^2 - a ^2 / 2bc
then use cos-1 to find the angle.

[splatttt]

thats what i did on the cos rule thing. I couldnt remeber how to rearage the formular at first but then i remeberd it was COSA =b^2 + c^2 - a^2 / 2bc



Hmm.. the last question id never covered ever. i was blank.
I wasnt sure about solving the inequlaity either hmm...