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Sorry, I just learned inverse trig last week, the correct answer is 2npi or minus(pi/2), and yes they should be an infinite amount of lines across the plane.

It is an array of lines, as if the substitution, x+y=a is taken, then all we need to do is find the values for which cos(a)=0 and then sketch the lines, this goes back to three unit general solutions. cos(a)=0 for n(pi/2) and n(3pi/2) hence we must draw . . . x+y=(-pi/2) x+y=(pi/2) . . . by...

Because it is a repeated root, denote it by x and then place the x inside as the series is infinate. You should then gain a simple quadratic equation.

High voltage current in general is beneficial as it allows for a lower loss while transporting electricity, or a need for expensive wires with a large cross-sectional area.

My mother is a G.P and she earns around 110K after tax, so I won't say that they earn a lot, but it is quite a bit and there is always work. The reason medicine is so hard to get into is because many people want to get in to help people and for the prestige, I even know some people who just want...

Hi, I'm going to James Ruse next year, except I don't do any advanced H.S.C maths or coaching. Despite this I am still coming around 20/180 in Math, 5/180 in Science and 50/180 in English at Sydney Boys. I would like to come right on average at James Ruse, will I get owned or can I acheive...

Re: 2008SC SC Results ~ For your performance compared to the state you can look at the previous percentiles needed to get into particular bands at the Board of Studies. these are my marks Maths 98 English 91...