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That makes sense! I didn't know powers didn't add when there was a pronumeral. :)

Oh right, so it equals: 18^{n}?

= \frac{6^{2n}\times 3^{2n}}{18^{n}} \\ \\ = \frac{18^{4n}}{18^n} \\ \\ = 18^{3n} Indice laws apply here right?

9:15am?

\text{Find the equation of the tangent}~y=2x^{2}+4~where~x=3.

I've seen that question before, but I don't know how to answer it. :/

I've done no probability and I'm still trying to figure out how to answer nightweaver's question. :(

Why am I so bad at maths? :( I don't even know where to start.

I'm not sure how to get those denominators common. :/ That's my only idea.

nightweaver066, that's a bit tricky, so far I've got to here and I'm stumped. Hint on what to do next? f\left( x \right) =\frac { 1 }{ \sqrt { x } } ={ x }^{ -\frac { 1 }{ 2 } }\\ f\left( x+h \right) ={ (x+h) }^{ -\frac { 1 }{ 2 } }\\ f^{ ' }\left( x \right) =\lim _{ h\rightarrow 0 }{ }...

We haven't done that either...

Anyone else is welcome to post! :lol:

No we haven't. We've covered: Linear Algebra Straight line graphing Calculus (differentiation) Geometry Trigonometry ..and probably a few more but I'll let you know if we haven't covered it.

We didn't cover that? Sorry.

Yeah prelim. 2U :)

I was wondering if people could post some prelim. questions for some practice. :)

I'll definitely take you up on that offer. :)

Well economics is my weakest subject, so I'm going to have to give it A LOT of practice! :)

That's going to be pretty hard to achieve though. :/

I got 0/20 in prelim. because I didn't do them! :(