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  1. shingiechingz@8

    IGCSE Maths Notes

    Hi l created some notes for the 2020-2021 syllabus for igcse math....Hope you find these useful.....
    • shingiechingz@8
    • Thread
    • igcse 2020 igcse 2021 igcse mathematics igcse maths igcse maths extended
    • Replies: 2
    • Forum: Chat
  2. shingiechingz@8

    Chemistry: Post your doubts here!

    i they will probably give u ecf marks . the values i got were x=3 and y=8 .Double your answers haha and as for lattice for ice i wrote crystal and bonding for ice covalent
  3. shingiechingz@8

    Chemistry: Post your doubts here!

    How was it......to me it was pretty much tooo easy
  4. shingiechingz@8

    Chemistry: Post your doubts here!

    did any wrote 9701/M/J/21/2017
  5. shingiechingz@8

    Mathematics: Post your doubts here!

    b(i) well first thing is first u need to find the value of r if a=1 then ar=1/3tan^2(theta) so r=1/3tan^2(theta) if the GP is convergent then -1<r<1 so -1 < 1/3tan^2(theta) < 1 multiply both sides by 3 u get -3 < tan^2(theta) < 3 so tan^2(theta) > -3 or tan^2(theta) < 3 ignore...
  6. shingiechingz@8

    A level Biology: Post your doubts here!

    I think that section was removed
  7. shingiechingz@8

    Mathematics: Post your doubts here!

    help #6(iii)
  8. shingiechingz@8

    Mathematics: Post your doubts here!

    square both sides so x^(-6)=32/x and multiply both sides by x^6 and divide both sides by 32
  9. shingiechingz@8

    Mathematics: Post your doubts here!

    well obviously from eqn 1 u get y^2=32/x and from eqn 2 y=x^(-3)... and substitute eqn 2 to eqn 1 to get x^5=1/32 so x= 1/2 and y=8
  10. shingiechingz@8

    A level revision Help.

    here you go
  11. shingiechingz@8

    Chemistry: Post your doubts here!

    can anyone give me some tips to excel in AS and A2 Organic Chemistry..............pleaseeeeee :(
  12. shingiechingz@8

    Mathematics: Post your doubts here!

    Help with this also
  13. shingiechingz@8

    Mathematics: Post your doubts here!

    Help with this please
  14. shingiechingz@8

    Mathematics: Post your doubts here!

    how did you find it..................................:)
  15. shingiechingz@8

    Mathematics: Post your doubts here!

    guys how do you solve this one? when a polynomial p(x) is divided by x-1 the remainder is 5 and when p(x) is divided by x-2 the remainder is 7. Find the remainder when p(x) is divided by (x-1)(x-2)
  16. shingiechingz@8

    Mathematics: Post your doubts here!

    I will show u by an example find the indep of x in (x-2/x)^6 It would be 6Cr*x^(6-r)*(-2/x)^r the term of x would be x^(6-r)*x^(-r) The equate the powers of x to zero 6-r-r=0 therefore r=3 then substitute r 6C3*x^2*(-2/x)^2 would be the answer
  17. shingiechingz@8

    A level Biology: Post your doubts here!

    HELP
  18. shingiechingz@8

    A level Biology: Post your doubts here!

  19. shingiechingz@8

    Bio topical papersAS

    Any time....
  20. shingiechingz@8

    Bio topical papersAS

    go to www.gceguide.com for topical AS papers
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