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diff: ln [ ( 3x^2 + 1 ) ( 2x + 5) ] why cant i use the product rule, and then have f'(x) / f(x)? i get a different answer to when i split it up into sum of 2 logs.

Ok, a little confused cause i have contradicting notes? :S One of my advantages for DC generators is : • No back emf once current is flowing. but, when i was doing this question, " a back emf is: " A. found in AC motors only. B. found in DC motors only C. adds to supply voltage D...

How many pages should they be, mine are approx 20 pages typed. And im wondering how many pages i should cut it down to? also whats the most effective way to condense the info, i have alot of sentences but everytime i try to condense i just end up reading over it lol.

hey guys, im looking for a quote i remember in romulus my father and it was along the lines of, how raimond is talkign about his father and his straightforwardness, where romulus would tell you to your face that he wasnt fond of your actions but would be willing to forgive you and invite you...

Ok, so area bounded by curves y = x^2 and y = x +2 is rotated about the x-axis. I have tried it so many time and i cant do it lol, so frustrating can anyone help? but is the general approach for this find the volume of one of the parts and then subtract another part?

Is it not true that as radius increases, orbital velocity decreases? and to find orbital velocity it is = length of orbit (2.pi.r) / period. Because for some reason my results happen in the opposite way, as my radius increases, my orbital velocity also increases...? so i gathered my...

Ok so i have 4 equations, with 4 variables, if i got all the terms down to say for example... A= xB A= xC A= xD where x is any random number, for some reason when i sub them back into one of the equations i get the wrong answer, but if i sub it into the only equation i havent used it...

If my textbook has Anode Zn(s) + 2OH- (aq) --> ZnO s) + H2O(l) + 2e- Cathode MnO2(s) + 2H2O (l) + 2e- --> Mn(OH) 3(s) + OH-(aq) For the reactions, what would be the overall reaction? For overall reactions do i simply just add the 2 equations togethor without...

Anode reaction • Zn(s) + 2OH-(aq) >>>> Zn(OH)(2)(s)+ 2e- Cathode reaction • Ag2O(s) + H2O(l) + 2e- >>> 2Ag(s) + 2OH-(aq) Is this the overall reaction? Or should the Zn(OH) in the anode reaction match the product in the overall reaction? ( like the product up there is Zn hydroxide...

Ok, so our free periods last about 55 mins, and in year 11 we just played COD on the computers haha, but i wanna start making good use of my frees and i wanna know whats the best to do cause i've given up playing. Btw, our frees are in the library with computers. But like when i try to do...

Why is CH2BRCHOH called 2 bromoethanol? i thought it took the smallest number from where you count?