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T' = 1/2(x^2+9)^-1/2 x 2x over 4 - 1 over 5 You missed the x2x when u differentiated. SImplifying: T' = x over 4root(x^2+9) - 1 over 5 Let T'=0 Cross multiplying T'=0 = 5x - 4root(x^2+9) 5x = 4root(x^2+9) 25x^2 = 16(x^2+9) 9x^2 = 144 x^2 = 16 x = (+-)4 Obviously x isn't going to be -4 so x= 4...

Derive and differentiate are different things...

Is studies of religion compulsary? You might consider dropping that...

Find the roots of x^2 + x = 4 is the same as Find the zeroes of x^2 + x - 4 Find the zeros of x^2 + x is the same as Find the roots of x^2 + x = 0 I'm pretty sure this is the difference, although could be more to it.

Eh could you write in full sentences or something? i'm having a bit of trouble understanding what you are saying sorry >__>.

Displacement reactions involve the loss and gain of electrons. I would assume that the less electronegative elements would give there electrons to the more electronegative elements. However the activity series given in CSU HSC online and the conquering chemistry lists Lithium as more reactive...

Entire course. You should start doing trials during these holidays. Seriously though, writing notes for everything covered in term 1 seems pretty good.

looks like a test-tube clearner lol.

Yes, it's worth it. Cambridge 3unit > everything else. (not cambridge 4unit though, its quite the terrible)

Br₂ + H₂O <---> HOBr + Br^- + H⁺ Acyclic Alkenes: C_nH_2n + HOBR --> C_nH_2nBrOH Cyclic Alkenes: C_nH_2n-2+ HOBR --> C_nH_2n-2BrOH Bromine water they expect HOBr

Don't rush topics. It is MUCH better to cover them thoroughly.

What if it was located in some country chinese town with none of the races u just stated. Provided oxford was there and they offer you a scholarship, would you still go ? edit: I woudn't if i were you. No suitable girls ahaha.

I would think race distribution would be a major part of the criteria for university selection. Would you study at an university in india? They all speak english but you probably don't have the same cultural aspects as them/not attracted to them ? Thus resulting in a very lacking social life.

what's the difference between the catalyst (the metal) and an initiator?

1. Production method of ethanol (industrial) Hydration of ethene. Ethene + H2O ---> Ethanol 2. Production method of bioethanol. Fermentation of sugars from plants such as sugar cane etc. One is renewable, the other isn't.

Okay so we all know that in the formation of LDPE the initiator, usually an organise peroxide, becomes part of the end polymer. For the ziegler-natta process: 1. Does it become part of the end polymer? 2. How does termination occur for the ziegler-natta process? 3. How exactly does the process...

bump :/

still looking aha.

:]

5x the MW of 1 glucose molecule. I.e. 5x the MW of C₆H₁₂O_{6 Where carbon = 12.01 Hydrogen = 1.008 Oxygen = 16 (just off the top of my head)}