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  1. S

    any guesses for oct/nov chem paper 34

    I too an taking chem paper 34 but no idea about how the qsns would be....
  2. S

    Maths P1 13th/oct .. how was it?

    For paper 12 the answer of the last question is 2.88 the value of y=0.5... i am damn sure...
  3. S

    math quetion on rate of change

    i am sorry. Actually i wrote it in hurry so.. To edit it the correct answer is: dr/dt=5/(2*pi*r) or, dr/dt=5/(2*pi*10/root pi) solve it you will get, dr/dt=1/(4*root pi) This is the correct answer...
  4. S

    math quetion on rate of change

    The answer is: In 1s the area of the patch is 5 cm^2 Then, in 20 seconds the area of the patch is 20*5 cm^2=100 cm^2 if A=100 then (pi)r^2=100 or,r^2=100/(pi) or, r=10/root(pi) (at the instant when t=20seconds) But i think the question has asked to find...
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