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This question is from the Cambridge year 12 extension 1 book Exercise 3G - Projectile Motion - The time equations question 17 part b)ii) I've done the other parts of the question just not sure how to go about b)ii). I tried double angle results, not sure if I've made a mistake somewhere...

Hey everyone, I'm a Medentry user and the percentiles that I'm getting on their exams are seriously scary. I've heard a lot of conflicting opinions on whether or not you should trust Medentry percentiles (the testing conditions aren't standardised etc) but my percentiles are genuinely scarily...

Hey guys, I just had a chemistry exam a few days ago which I messed up pretty bad. Expecting to drop like 7-8 marks whereas most people are saying they lost like 2 or 3 (not too many marks so each mark is worth a lot). I was coming 2/94 in chemistry (at a top 20 school) and I'm expecting my...

Hi everyone, I have an upcoming task (an essay) for Module C - People and Politics and I really don't see myself writing a quality essay with 4 body paragraphs within 40 minutes. My class teacher said something along the lines of "I'd recommend writing 4 body paragraphs, 2 for each text on each...

Hey guys, I've been doing a few past MX2 papers on complex numbers and I often see in the worked solutions that real roots such 1 are not considered complex. Like for cube root of unity a solution I saw for the question "if w is a complex cube root of unity, prove that w^2 is also a root" was...

Hey guys, I'm doing english advanced right now and we have an upcoming task which is a speech and we are required to discuss how Shakespeare's plays, through characterisation, is able to remain relevant today. Content wise I know what to discuss. But I have been given so much contradictory...