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answer is (sqrt3)/2 ignore working

For reference my other current subjects are Maths x1, Eng x1, Physics, Music 2, SOR I (cant drop sor) Modern Chem Content Seems interesting; I can self study this a bit easier than chem but I don't mind self studying either Also interesting - honestly I can do both subjects fine Teacher...

(cambridge 15C) answer: 40C20 I attempted this by first seeing that every term of (x+1/x)^40 multiplied by its reciprocal from (x-1/x)^40 creates a constant and is also cancelled out e.g. x^40 * -x^-40 = -1, x^-40 * x^40 = 1, cancels out because of symmetry However the remaining middle terms...

my yr10 science teacher told me that planets form exactly the same way as stars (from nebulae + gravity) but that doesnt make sense because stars are mostly gas while planets can either be gaseous or solid. can I get some clarification on how exactly planets form?

When I sub in x = -2 on the original eqn m gets deleted?

My teacher mentioned this as a side note to graphing some questions, but we passed over it really quickly and I haven't been able to figure out what they meant by that. Anyone have any idea on what this concept is and how to use it?

looking for a solid coaching that goes relatively fast through the content & reliable Dr Du and Zhangs are similar price except for a price hike in yr12 for dr du so I am not concerned over that too much however Dr Du gives a lot of hw so I am wondering how much Zhangs gives out. Also for Dr...

only need (c) ignore the $1 entry fee it wasn't mentioned at all in the question

Fees are on the website in the FAQ. I've attached the timetable. I am currently in Dr Du Ext 1 Year 11 (A1). I only joined this year and tested in and previously used a different coaching school - I am considering quitting Dr Du, not because it is bad but because the order of Dr Du topics is...

I've found out that the selective schools I'm planning to apply to offer software development for the HSC and the course is listed as something that could help my uni studies (not a pre req or assumed knowledge thankfully) From people who've taken this course did you feel you needed a lot of...

Q15 (b) should be easy enough dx/dt = t dy/dt = 1/t dy/dx = 1/t^2 but the answer sheet says -1/t^2 ? Where did they get a bloody negative?