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hey guys, thanks for reading, just couldnt figure these questions out: If a and b are the roots of the equation px^2 + qx + r = 0 find, in terms of p,q and r a)1/a^2 + 1/b^2 b) a^b+ab^2 When it says in terms of p,q and r, does every equation have to have all three terms? Cheers

I just started this topic by myself, not coping very well, just need a few tips on how to solve the following questions (working out would be awesome :D): a) A piece of wire 6 metres longis cut into 2 parts, one of which is used to form a square, and the other to form a rectangle whose length...

I'm having a little trouble with this equation, cant move the numbers around very well. If cos u=2/3 and u is not in the first quadrant, find in simplest surd form, the value of cos u - 2 cot 2/ tan u - 3 sin u Greatly appreciated if working out could be shown as well, cheers

Hey guys, just doing a little extra here and im pretty stuck on this: 11 (a) Find the equation of a circle whose centre is the point (-1,2) and whose radius has a length of 5 units. I could work this question out which turned to be: x^2+y^2+2x-4y-20=0 But part b had me stumped: b) What is the...

Ok, I have no idea how to do the following questions First, fine the equation of the locus of a point P(x,y) that is subject to the following conditions: 1.)A point is √2 units from the line equation y=x. The answer is y=x plus or minus 2. However, I have no idea how that is right. 2.) A and...