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thx treb

sup guys how do u prove this other than expanding everything, i tried contracting it but it didnt work out well for me :/ sin(5x) + sin(3x) - 2sin(2x)cos(x)=2sin(2x)cos(3x) thanks

oh kk thanks for pointing out my mistake :)

$From the diagram, diameter of sun$\ =149000000\times {tan31}' \\ \pi = 180^{\circ}\\\\1^{\circ}= \frac{\pi}{180}\\\therefore {60}'=\frac{\pi}{180}\\\\{1}'= \frac{\pi}{60 \times 180}\\\\\therefore {31}'= \frac{31\pi}{10800}\\\\$when x is very small,$\ tanx\approx x \\\therefore diameter =...

heres an extra post to derail op's thread

yea i did it last year and got in, it wasnt particularly hard, but the maths test for that year was weird cos most of the questions didnt directly relate to maths, sorta like science. for eng writing they gave us 2 pics and told us to write our stories based on them oh yea and we also had to...

yea but u can assume that 20% of the 100 applicants will go to other schools so the actual total applicants can be limited down to around 80 and since u gotta be the top 20 to make it in, u just need to be in the top 33% of the applicants so it's not as bad as it seems to be last years giras...

for girra u just do a test if u do well in the test and rank in the top 20's ur pretty much in

http://community.boredofstudies.org/member.php?u=1610923497