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  1. B

    Mathematics: Post your doubts here!

    you know tangent from a point are equal when all the tangents are able to meet means all are equal since 3 sides are equal all 3 angles are equal 18/3=60
  2. B

    Mathematics: Post your doubts here!

    read my post again i explained :)
  3. B

    Mathematics: Post your doubts here!

    nov 11 question fill in the diagram the answer will be the number will will be part of F but not inside the intersection i have to do mj 11 paper yet so i ll answer it later
  4. B

    Mathematics: Post your doubts here!

    first diagram shade whole of A even the part intersecting B and the part out side them the only missing part will be where B is not intersecting A 2nd diagram everything besides the A intersection B
  5. B

    Mathematics: Post your doubts here!

    come on guys post some hard questions :/ these are simple
  6. B

    Mathematics: Post your doubts here!

    part a (xpower 9)cube/3 cube the 3 from 2/3 will be cancelled than square them part b this is similar take square out of them the final answer will be 2x
  7. B

    Mathematics: Post your doubts here!

    the thing is its not part of the IG syllabus thats why its for only 1 mark such questions are included just to separate normal candidates from those expecting distinctions there is always 1 or 2 such questions in the paper that are a bit tricky if there is no such question than the threshold is...
  8. B

    Mathematics: Post your doubts here!

    i did my add maths in oct/nov11 you guys dont have logs in normal maths think of it as what power of 10 will give you the answer 1 anything with power 0 is 1 take a function like 2power x the inverse will be log base 2 of given x if they give x as 4 for this function the question means what...
  9. B

    Mathematics: Post your doubts here!

    here i posted here so every one can see it
  10. B

    Mathematics: Post your doubts here!

    inverse of a function make a mirrored graph so plot a rough reflection and check the value
  11. B

    Mathematics: Post your doubts here!

    it is now try opening in another tab
  12. B

    Mathematics: Post your doubts here!

    -2/3 means that -2 is the power and 1/3 is cuberoot any negative power will change the number to a fraction of type 1/x where x is the number u squared
  13. B

    Mathematics: Post your doubts here!

  14. B

    Mathematics: Post your doubts here!

    you need to consider the whole wrapper around it as a equilateral triangle
  15. B

    Mathematics: Post your doubts here!

    i never understood the matrix function on the calculator so maybe someone else can help
  16. B

    Mathematics: Post your doubts here!

    if you extend all 3 lines you get an equilateral triangle so all three angles out side the figure will be 60( the angle from tangents) 180-60 to get the answer 120
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