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I got the first question part a.. But i keep getting 1/rt3 for the next bit.. And im stuck on q 2

1. A picture 1 metre tall is hung on a wall with its bottom edge 3 metres above the eye E of a viewer. Let the distance EP be x metres, and let theta be the angle that the picture subtends at E. a) show that theta us maximised when the viewer is root 12 metres from the wall b) show that the...

Integrate sec^2(sinx)/secx Thanks

How did you write your process log book?

Are there any particular study guides that you would recommend for Advanced Eng HSC?

What if i just get band 5s? And like 1 band 6?

analyse and present research information from secondary sources to report on progress in the production of artificial blood and use available evidence to propose why such research is needed. Thanks :)

Hey guys... So.. Is it easy getting an atar above 90, even just 91? Around what marks (estimate)do u have to get in all ur subjects? 80?

Hey guys, I just wanted to ask are there any other pathways to mbbs, rather than directly? Im afraid i cant get an atar in the high 90s.. Thanks :)

1. Calculate the area bounded by the graphs of f(x) = x^2, g(x)= 1/x^2 x>0 and the line x=3 2. Find the area enclosed by the parabola y= x^2 +1, the tangent y= 4x-3 and the coordinate axes 3. In what ratio does the X axis divide the area of the region bounded by the parabola y= 4x-x^2 and...

Ive been changing topics sooo much in the recent weeks. Suggestions with a historiographical topic?? Something with lots of info + interesting please!!

Umm.. I got 1 as the answer. But the textbook says 8. Am i doing something wrong?

Hey guys.. I was wondering approximately how much percentage do u need for the school assessment mark to get an atar over 90?? Would. 80-90% make it??

So then do i integrate 1/x^2 -x^2 from 0 to 1 then do the same for 1-3?

The answer is 8 square units :(

Calculate the area bounded by the curve f(x)= x^2, g(x)=1/x^2, x>0 and thr line x=3

mol L^-1

1. If y= ax^2 +bx+c touches the line y=2x at the origin and has a maximum turning point at x=1. Find a, b and c 2. Sketch the graph of y= (x+1)^3/x

Thanks for ur help! But i still dont understand the first question :( did u get 1.6 for the second q?

1. 1.0ml of 10mol hcl acid are diluted to 1L with distilled water. 250ml of this solution are then further diluted to 1L with distiiled water. Calculate the ph of the final solution 2. 500ml of 0.15 mol sodium hydroxide solution are mixed with 500ml of 0.1mol hcl acid solution. Calculate the...