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probability
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if A=ankur does right and R=ramesh does right
P(A)=1/8 P(R)=1/12
now both do same mistake P(A^R)' =1/1001 so P(A^R)=1-1/1001 = 1000/1001
so the probebility of correct answer is P(A' ^ R' )' [in ankur & ramesh any
one gets correct answer
=P(A)+P(B)-P(A^B)
=1/8+1/12-1000/1001
= -18995/24024 we will get it.we have
to find P(A' ^ R' )' ]
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Algebra
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plz
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plz tell me the date of jee08.
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Mechanics
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plz tell me.........
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hey guys plz tell me what is the date of jee08? i am not going to apper this year.i will apper next year
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Cross-Product of Vectors
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if you write i,j & k in traingle shape like i
k j
and moves to clockwise direction you will get
i * j = k , j * k = i,k * i =j
now if you moves anticlokwise direction
i * k = -j , k * j = -i , j * i = -k
Discussion Forums
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Algebra
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try this one - part 2
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it may be solve by critical point methord
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Algebra
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Challenge to everyone
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hey redevil if it is -2007 C 2007 then you are absulitly wrong.in combination you
have to select something from the given quntity.and
given quntity
is always grater then zero.
so plz
check your question
.
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Organic Chemistry
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sorry,now can anyone plz explain me the concept of sp2,sp3 hybrization urgently plz
->
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in sp3 hybridization one s and three p orbitals hybrides.if we take methyn there is sp3 hybri.in it in carban it has one unpair elecrone in s orbital which attached with three elecrones of p orbital and makes four same staringh sp3 bonds.
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if .
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5 replies
you cannot hit the to the rod in space in absance of gravitaional force
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doppler effect
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are you sure with the ans? i don't think so it is right.
if deector is moving in +ve x-axis direction &soruce in -ve x-axis direction
then
for both V
S
&V
d
=a*t=20
fs/V-Vs =(f)
d
/V+V
d
so f
d
=f
s
(330+V
d
) / 330-V
s
f
d
=330+20 / 330-20
f
d
=35/31 khz
Discussion Forums
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Mechanics
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very easy mechanics qns just want confirmation needed
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i agree ramyani.but if bc is strigt then... draw tengat they will same
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problem in kinamatics
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i didn't mantion they have same velocity.they do con acc.
and hey....
p&q both moves to each oyher as you told.
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Mechanics
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very easy mechanics qns just want confirmation needed
->
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is it stright line between b &c. if it then instantteneous velocity remains same during b_c period.so instantteneous velocity is same at b &c.
if not then ans will AT B point
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problem in kinamatics
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if they both do constant acc motion then &their acc is A
then time t=root(D / A)
for p it meet q at D/2 as they both do con acc
THEIR u=0 so from D/2=ut+1/2 At^2
D/2=1/2 At^2
t=root(D / A)
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Algebra
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permutation and combination
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can we repeat one letter?
if we can then it will be
13! / 4!2!3! =21621600
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Algebra
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bainomial
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is zero integral shoosy?
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