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Hi all, selling my textbooks, prices are negotiable (: Please PM me for more details / any questions of the condition etc. or deals on buying in bulk. Best place to meet would generally be around the city but this is also negotiable. HSC English - Book, Condition, Price (Red) - The Great...

Find, in the form y = mx + b, the equation of the tangent and the normal to the curve at the point indicated: y = inverse sin(x/2), at x = sqroot(2) I found the tangent to be y = x/root(2) - 1 but the answer has the same but with + pi/4. I have no idea where pi came from essentially...

So I've noticed a trend with people recommending that those who do 4U Maths should drop to 10 units. Currently I have 12. Pros / Cons / Thoughts? None of my other subjects really stand out too much to drop really...

I sadly can't do the 'optimal' 12 units so what do people recommend. out of 13 vs. 11 Units? What are the pros and cons? :thrust:

I'm having a lot of trouble recently after completing my homework doing extra study. I often have no idea what to study after I've completed set teachers homework etc. Prelim exams are not far away so kinda worrying... My subjects: Math Ext 1, Adv English, Chem, Phys, Eco. I mean sure I...