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  1. A

    simplify this

    I still can't get it, the answer is -1/x
  2. A

    simplify this

    LOL, I forgot the brackets! I've put them in now.
  3. A

    simplify this

    (x^-1- 1)/x - 1
  4. A

    Integrate these for me please

    Then why are all these questions coming up in 2U papers?
  5. A

    Integrate these for me please

    It is 2U, can you help me with another one, 1/x+4?
  7. A

    weird trig question

    cos theta = 0.64 and 0<theta<2pi. How do you solve this?
  8. A

    weird trig question

    cos theta = 0.64 and 0<theta<2pi. How do you solve this?
  9. A

    Integrate these for me please

    a)1/(6x+1)^2 b)3 tan x/x^2
  10. A

    Question about locus

    thanks!
  11. A

    Question about locus

    Guys, how do you find out how many times a locus has cut the x axis? For example, (x-1)^2 + (y+3)^2 = 4.
  13. A

    Help with a simple question

    How do you get a? The a in 4a.
  14. A

    Help with a simple question

    And how exactly do you do that again?
  15. A

    Help with a simple question

    Ah, I see. Can you answer my other question?
  16. A

    Help with a simple question

    How do you go from 14 to 9+5? Do you just guess it? Also, I have another question. Consider the parabola y=x^2-4x+8. Find the coordinates of the focus.
  17. A

    Help with a simple question

    Find integers a and b such that x^2 + 6x + 14 = (x+a)^2 + b.
  19. A

    G forces

    Thank you!
  20. A

    G forces

    No, my question asks WHY, not their effects....
  21. A

    G forces

    I don't get it. Ok, so if the question says " Give reasons why the term g force is used to describe the forces on astronauts", how are we going to answer it?
  22. A

    G forces

    The dotpoint say "IDENTIFY" why g forces are used. Most of the textbooks only explain what g forces are and their effects on astronauts but never WHY they are USED. So why are they used?
    • abdog
    • Thread
    • Replies: 8
    • Forum: Space
  23. A

    independant trials question

    How does halving the radius multiply the force of gravity by 4? Shouldn't it be just 2? Can you show me how?
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