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  1. Ahmed Al Hilali

    Physics, Chemistry and Biology: Post your doubts here!

    i just remembered these questions :(
  2. Ahmed Al Hilali

    Physics, Chemistry and Biology: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20IGCSE/Chemistry%20(0620)/0620_w09_qp_6.pdf can anyone explain to me : Q4 (e)(ii)&(iii) ? http://papers.xtremepapers.com/CIE/Cambridge%20IGCSE/Chemistry%20(0620)/0620_s11_ms_61.pdf can anyone explain to me : Q5 (e) ...
  3. Ahmed Al Hilali

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20IGCSE/Mathematics%20(0580)/0580_s12_qp_22.pdf Q8
  4. Ahmed Al Hilali

    Mathematics: Post your doubts here!

    total distance = 100 m distance from 0 sec to 8 sec = 80.6 m(from (a) ) distance from 8 sec to 10 = 100-80.6=19.4 m distance = area under graph 19.4 = 1/2 ( Base 1 + base 2 ) x Height were base 2 is the speed when he cross the finish line so 19.4 = 1/2 ( 12.4 + x ) x 2 >> 19.4 = 12.4 + x >> x...
  5. Ahmed Al Hilali

    Mathematics: Post your doubts here!

    Thank you ,, thats was 0580/21/M/J/10 Q17 C http://papers.xtremepapers.com/CIE/Cambridge%20IGCSE/Mathematics%20(0580)/0580_s10_qp_21.pdf Sorry for misleading
  6. Ahmed Al Hilali

    Mathematics: Post your doubts here!

    Hey , Can anyone help me ? 1)0580/21/O/N/08 Q 5 2) I dont remember in which paper is this question, but it says : D,E and X are 2x2 matrices. I is the identity 2x2 matrix. i) Simplify DI . ii) DX=E Write X in terms of D and E . 3) 0580/21/M/J/08 Q10 4) 0580/22/M/J/10 Q17 C Tomorrow is my...
  7. Ahmed Al Hilali

    Mathematics: Post your doubts here!

    Hey , Can anyone help me ? 1)0580/21/O/N/08 Q 5 2) I dont remember in which paper is this question, but it says : D,E and X are 2x2 matrices. I is the identity 2x2 matrix. i) Simplify DI . ii) DX=E Write X in terms of D and E . 3) 0580/21/M/J/08 Q10 4) 0580/22/M/J/10 Q17 C Tomorrow is...
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