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my mistakes are your exact same mistakesI was so confident going into this exam. I did all the past papers and the lowest I got was 94%.
Everything was great until question 7, when I didn't know how to find the range. Ugh. Apparantly all I had to do was make the differential = 0
Looking at this page I might have read 7b wrong. I found the inverse, not the differential.
8b was also difficult. I thought maybe it had something to do with 0.25 = 0.5^2, but in the time given I couldn't figure it out.
I also remembered a stupid mistake I made. When finding the max value of P(θ) I made the cos(θ+...) = 0, not -1.
I was aiming for an A*, but probably won't even get an A. I'm almost definitely going to re-take C3.
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