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  1. Nikesh

    Re-exam doubt!!!!

    If we get B in Mathematics n want to appear again in next session to improve grades, n unfortunately if xm is spoiled than before than wat effect will it have to the previous grade??? will it be changed or remains same???
  2. Nikesh

    CIE May\June examination session ending soon

    this year's may\june session has finally ended, hope you are all feeling relief and are all done with exams......ENJOY THE VACATION GUYS
  3. Nikesh

    AS Physics P1 MCQs Preparation Thread.

    question says ball is dropped....which means its currently in rest, had it been moving, it could not be dropped i guess what you say???
  4. Nikesh

    AS Physics P1 MCQs Preparation Thread.

    its C --> for first case when the sphere is dropped u^2 = 0 + 2as (let s be total height of the fall) i.e. u = (2as)^1/2.........................(i) -->2nd case for bounce 0 = v^2 - 2a(s/2) (since the height is half of total height this time) or, as = v^2 i.e. v = (as)^1/2 now, v\u = (as/...
  5. Nikesh

    CIE May\June examination session ending soon

    After a long routine of about 1 and half months, may\june session of this year is ending in few days. A final exam i.e. Physics P1 is left to be nailed. How are your preparations going on?? And also how did you all do rest of the papers ??? BEST OF LUCK FOR COMING EXAM AND RESULTS TOO...!!!!!
  6. Nikesh

    Mathematics: Post your doubts here!

    Use the formula Vaverage = Total distance travelled / total time taken i.e. --> let s1 be distance traveled till t= 50 s -->i.e. s1 = 0.6 * 50^2 - 0.004 * 50^3 (use given equation of displacement which is x = 0.6t^2 - 0.004t^3) = 1000m --> let s2 be distance traveled after t>=50s --> i.e. s2=...
  7. Nikesh

    How was Math P1??????

    i too got same answer.. it must be the correct answer
  8. Nikesh

    How was Math P1??????

    Don't worry, you will secure a good grade Do good in rest of the exams, and you will touch the apex.. GOOD LUCK (y)
  9. Nikesh

    How was Math P1??????

    How did you all do todays Math P1 examination?? Was it really hard, normal or easier paper?? :)
  10. Nikesh

    Mathematics: Post your doubts here!

    Q3 compare given equation with ax2 + bx = c = 0, and deduce determinant i.e. (b2-4ac)^1/2 --> since equation has 2 roots, determinant is >0 i.e. (b2-4ac)^1/2 > 0 --> Solve and find values of p and q
  11. Nikesh

    Mathematics: Post your doubts here!

    --> 2(ii) (1-3/2x)^6 --> expand it to the term of x^3 --> then multiply expression obtained with(k + 2x) you will two terms with x^3 include term with k equate that with 0, solve it you will get value of k
  12. Nikesh

    BEST OF LUCK (MATH P1 STARTING IN 6 hours)

    All students who are appearing math p1 students..... I wish u all best wishes may you solve every problems accurately in minimum time anyone having problems can still share the problem. GOD BLESS
  13. Nikesh

    Mathematics: Post your doubts here!

    if question is tan(1/2pi - x ) then it goes like this given tanx = k now tan(1/2pi - x) = tan (90 - x) = cotx = 1/tanx = 1/k...simple
  14. Nikesh

    Mathematics: Post your doubts here!

    for 3 (ii) Let AB = (1/k) m (Since they are both parallel) i.e. m = ABk.........(i) use given position vectors to find AB when p=4 and then find vector m in terms of k with above equation....(i) u r then given magnitude of m i.e. |m| = 28 use magnitude formula u will get k=4 now substitute...
  15. Nikesh

    Mathematics: Post your doubts here!

    for i) you might have expanded given expression up to 3rd terms ii) first let y = 2x - x^2 and then use your expanded expression in (i) simplify all terms and then you will find coefficient of x^2
  16. Nikesh

    Mathematics: Post your doubts here!

    Oh sorry there has been formula mistake it should 12/30 +16/30 - 3/30 since intersection has to be deducted as in formula of set
  17. Nikesh

    Mathematics: Post your doubts here!

    U r given some values, Total number of Females (Fn) = 12 Total number of ppl who watch "Kids andKops" (Kn) = 16 Number of female who watch "Kids and Kops" (In) = 3 now P(Fn or Kn or both) = 12/30 +16/30 + 3/30 (Since 3/30 signifies for the intersection of female and who watch "KIDS and KOPS"...
  18. Nikesh

    Mathematics: Post your doubts here!

    no u dont have to go for calculation question says to suggest so u are to estimate some parameters but your values sud fit the expected weights too
  19. Nikesh

    Chemistry: Post your doubts here!

    ya answer is D, because there is formation of SO3 here deduce reaction equation in each case and find number of moles of oxygen in each cases you will probably find to be 0.5, 0.75 and 1.5
  20. Nikesh

    Mathematics: Post your doubts here!

    it is because equations in the form ax^2 + bx + c = 0 will have exactly one root when b^2 - 4ac = 0 will have 2 roots when b^2 - 4ac > 0 and no real roots when b^2 - 4ac < 0 its a basic rule that is to be known
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