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 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
how should we differetiate modulus functions.
eg
y=1/|sinx|
dy/dx=?
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Simply superb. thanx a lot!!
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hi
pls solve this problem 4 me:

2 particles A and B are projected from bottom and top resp.one is projected with 200m/s and the other with 50m/sthey are of masses 1kg and 2kg resp. initially they were 90m apart.find the centre of mass of the particles. g=10m/s^2
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
use morrison and boyd and an organic chemistry book written  by an indian author.compare. you can easily identify the reagents and you can also remember them easily.but be ready to spend some  3-4hrs.it is not difficult once you get used to this method.

 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
hi,
can anyone tell me about balancing of reactions by using oxidation number method.

gayathri
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Hi,
I have doubt in these 2 problems.it sounds simple. help me to do it.

1.masses m, 2m, 3m occupy the vertices of an equilateral triangle of side a.
locate the centre of mass of the system.
2.masses m, 2m, 3m, 4m occupy the vertices of a squre of side a.loacate centre    of mass of the system.

gayathri
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
hi,
i am doing my 11th.do you think i can start preparing for iit from now since my friends are attending coaching classes for past one year.
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