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The person coming second in my school got a 41% for her trials. and the person coming third will probably get 30s

another Kermit's problem ABC is a triangular obstacle, with AB horizontal. This time the slimy frog jumps from point A, just grazes C and lands at B. Show that it jumped at an angle of: tan^-1[tan(A) + tan(B)] to the horizontal

by the way, can we assume AM-GM

both are easy if your memory is good. Chem is stupid though.. half the course is politics and history. Physics is about as bad. I rather take the older course

getting to 90s, work on your maths..

speed up your working, finish the exam in 2:30 and check everything over.

statistics shown that students doing 12 units perform consistently better than those doing 10,11 or 13. and hey, some of us actually do maths for the sake of doing it too :p

old books stood the test of time.

by the way how do you escape key characters? is it a slash or something?

The question was a,b are positive and ab > a+b, prove a+b > 4 surely it was posted 'elegantly' :p (sqrt(a)-sqrt(b))^2 >= 0 .... sqrt(a+b) > 2 ....

Algebra, Calculus, Algebra, Caluclus, Algebra Calculus. you get the gist I hope :) Most of the time when you can't do a question is because you're eitehr stuck on algebra or made a mistake with your differentiation. solving and factorizing polynomials (esp quadratics) typical expansions...

the year 10 method: flip to the backof the book.

it is a little dodgy... but hey, it's in exemplar scripts and the MANSW booklet solutions..

Annoy your teacher till he/she gives you the solutions

second that one, comps are more relevant.

probably the scaled mark for UAI aggregate Hmm.. around 90/100 raw for 90/100 scaled, for most of the good scaling subjects the top raw marks are scaled marks are approximately the same.

my teacher asked us to prove something that was false, which was quite unexpected. Another one was a question that asked about the horizontal distance travelled by a projectile, but not from the origin (misread the question :( )

maybe that's not the question? I plugged the thing into mathematica, turned out a quite weird. maybe it meant x^2*tan(x^3) ?

here's another solution, similar: let A = (a,a^3) and B = (b,b^3) a != b (!= means not equal) we know that gradient of AB is 3a^2 by differentiation so: (a^3 - b^3)/(a-b) = 3a^2 a^2 + ab+ b^2 = 3a^2 (since a-b is not 0) b^2 +ab -2a^2 = 0 (b+2a)(b-a)= 0 b = -2a (again, since b-a...

thanks guys, feel alot more reassured :)