11@ Avni
4 the 1st ques
my suggestion
apni taraf se coordinates bana lo jo conditions ko satisfy karte hoon
now iske liye aapko rotation aana chayiye
lets take
(0,0)
rotate it by 60° u will get (1/2,√3/2)
then again rotate it to get the 3rd coordinates
U SHOULD GET THE ANSWER BY THE ABOVE METHOD
TALKING ABOUT PURE MATHEMATICS THIS IS A VERY -2 GOOD QUESTION
HERE CONCEPT OF ROTATION AND A PROPERTY
z12+z32+z32=z1z2+z3z2
+z1z3
HAVE TO BE USED
USSE MERA BAN NAHIN RAHA THA
U TRY BY BOTH THE METHODS AND INFORM WHICH ONE IS THE BEST
12nd answer is c......for sure
1357A more simple solution for second one
if you see from the graph
clearly
z4= -z1/2, z5= -z2/2, z6= -z3/2
|z4-z5|2=|-z1/2+z2/2|2
=(-z1/2+z2/2)(-z1/2+z2/2)
1357
Manish Shankar
·2009-04-08 21:52:07
OA=|Z1|=1 also o is the
we know OA=(2/3)AP and OP=(1/3)AP
so OP=(1/2)OA=1/2
|z4|=|z5|=|z6|=1/2
|z4-z5|2=(z4-z5).(z4-z5)=|z4|2+|z5|2-z4z5-z4z5
This might help
1357
Manish Shankar
·2009-04-08 20:53:58
for 14
Use
|z1+z2+z3|2= (z1+z2+z3)(z1+z2+z3) where z1+z2+z3=0
1Pattern
Question Papers
There will be two question papers, each of three hours duration. Both the question papers would consist of three separate sections on Chemistry, Mathematics and Physics. Questions in these papers will be of objective type, which are to be answered on a specially designed machine-gradable sheet (ORS – Optical Response Sheet) using HB pencils only. Incorrect answers will be awarded negative marks.
1Ya thnx YAAR!!
koi shorter methd ho to batana
11
Mani Pal Singh
·2009-04-08 11:13:18
ISNT IT SOLVED ???????
DIDN'T U GOT THE IDEA
??????????????????
1
avni
·2009-04-08 11:03:56
chalo bas No bro!!
guyzz pl solv da Q yyaaron
114 m gettin it as d
bt i guess dats a
21kudi punjab di pappe!!
mani tujhe bhai bana diya [5]
hard luck [3]
243 subsjctive q's per subjct ???????????????
i dont think it is true.............maybe another rumor.....[9][9]
11
Mani Pal Singh
·2009-04-08 10:56:41
pata nahin
sab meko bhai kyun baane ke liye tyaar hain
jab rakhdi aaegi
sabko aapni kalai mail kar doonga
and u will only ashirwaad from me
1
°ღ•๓ÑÏ…Î
·2009-04-08 10:52:36
hahahhahah i cnt stop laughin............
mani u noe y
11
Mani Pal Singh
·2009-04-08 10:46:58
bro, can u pl solv this un then
[3][3][3][3][3][3][3][3][3][3]
NICE JOKE
NOW LETS GET BACK TO WORK
I AM TRIN THIS 1
1
°ღ•๓ÑÏ…Î
·2009-04-08 10:46:09
ya i heard they'll b askin 3 subsjctive q's per subjct
these days our clases people also set d paper similarly
1
avni
·2009-04-08 10:44:59
bro, can u pl solv this un then [1]
11
Mani Pal Singh
·2009-04-08 10:42:52
AVNI EVERYTHING IS POSSIBLE IN JEE
THEY R MASTER IN SURPRISING STUDENTS
MAY BE SUBJECTIVE TYPE OF QUESTION COME THIS TIME AND THIS IS WELL MUCH IN SYLLABUS
AND THIS YEAR COMPLEX NUMBER QUESTION WAS ALSO UP TO THEIR MARK
REFER PREVIOUS YEARS PAPERS IN CASE OF DOUBT
114) is it ------->> a) and
15) is it ------->> b) or c)........[12][12][12].......???.............
is such a que likely on 12th