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#476 Re: Maths Is Fun - Suggestions and Comments » I Need Some Space for Rough Work!! » 2010-04-02 21:16:56
yeah... working now!!!
but when i click on Quote to see the code then it displays [url]instead of [img]anyways.. THX!!! 
#477 Re: Maths Is Fun - Suggestions and Comments » I Need Some Space for Rough Work!! » 2010-04-02 21:14:18
ok...
i'll try again..
#478 Re: Maths Is Fun - Suggestions and Comments » I Need Some Space for Rough Work!! » 2010-04-02 21:11:26
why is not showing the image?
can anyone tell me what's happening??
#479 Re: Maths Is Fun - Suggestions and Comments » I Need Some Space for Rough Work!! » 2010-04-02 21:08:47
#480 Maths Is Fun - Suggestions and Comments » I Need Some Space for Rough Work!! » 2010-04-02 20:40:39
- ZHero
- Replies: 8
trying to post a smiley....
#481 Re: Help Me ! » root prove » 2010-04-02 18:57:23
...............
Product of Roots:K.3K=q (c/a)
===> 3K^2=q
===> 48K^2=16q .......(2)Result...........
after that , how did you get 48....??
Silly Girl!!!! 
Multiply both sides of 3K^2=q by 16 and u'll get eq.........(2) above
now, as....
48K^2=3p^2..........(1)
48K^2=16q............(2)
hence....
3p^2=16q
#482 Re: Help Me ! » root prove » 2010-04-01 21:38:12
If equation is
then,
where is 3 p^2
ZHero wrote:===> 48K^2=3p^2 (multiply both sides by 3) .......(1)
#483 Re: Help Me ! » In a function.. » 2010-04-01 21:07:06
x+(x-1) +(x-2)+........... + 3+2+1=4950
how can we get x next ??
Sorry but in d above expression, first term X won't be there because first person shakes hand with X-1 people...
It shud be...
(X-1)+(X-2)+.......+3+2+1 which is the sum of first X-1 natural nos.
=
Hint:use formula for sum of X terms of an AP with first term 1 and Common Diff. 1.
#484 Re: Help Me ! » b^2 -4ac » 2010-04-01 04:23:29
#485 Re: Help Me ! » root prove » 2010-04-01 04:08:18
Hmmm...
Remember:Whenever any Relation between Roots is given, its always Best to Start with Sum and Products of the Roots...
This will help u solve Most of the Problems in the Examination!
Let one root be K.
Hence, other root will be 3K.
Sum of Roots: K+3K=-p (-b/a)
===> 4K=-p
===> 16K^2=p^2 (square both sides)
===> 48K^2=3p^2 (multiply both sides by 3) .......(1)
Product of Roots:K.3K=q (c/a)
===> 3K^2=q
===> 48K^2=16q .......(2)
Result from (1) & (2)!
#486 Re: Help Me ! » gp » 2010-04-01 03:34:36
...i mean just by looking at the question , how can we come to know which formula has to be used?
Read the Question once again...
If the ratio between first three terms and first six terms of GP is 125 : 152. Find the common ratio.
As the No. of Terms is Specified, we Can't Use the formula for Sum to Infinity!!! 
#487 Re: Help Me ! » In a function.. » 2010-04-01 03:28:37
Why do we take that the first person shakes 99 hands ????
i mean , why 99 ? Why not any other number?
hi!!!!
Let the no. of people be X.
Hence, 1st person will shake hand with everybody else except He Himself i.e. X-1 people!
2nd will shake hand with X-2 people (not X-1 coz he's already shook hand with 1st!)!
and so on....
Hence, total no. of hand shakes=X+(X-1)+(X-2)+.....+3+2+1=4950!
Bobbym was just showing u that X=100 is the Right Answer!!
#488 Re: Jokes » nice one » 2010-03-31 20:31:48
however.. I believe that being Rational and being Real are no different things!!
Its ALWAYS REAL!
#489 Re: Help Me ! » math » 2010-03-31 20:23:32
Hi lazarom!
I'm sure u'll get some help!! 
Can u plz tell us What EXACTLY r u looking for in Edge Graphs??
#490 Re: Help Me ! » Need expressed as an equation » 2010-03-31 20:19:52
2.
it should be....
which'll give u
x=2 or -3
#491 Re: Formulas » Tests For Divisibility » 2010-03-31 05:41:55
Thx Jane for such a nice Explanation! 
#492 Re: Help Me ! » value of k » 2010-03-30 02:33:01
now put the values of c and a and you'll get....
#493 Re: Help Me ! » gp » 2010-03-30 02:22:50
There Are Two Formulas To Find Sn In Gp
One , To Be Used When r>1 ,
Another, When r <1
Since We Dont Know R Here, How To Use This ??? This Formula Is To Be Used When r<1???? Why Did We Use This ??? Please Explain???
Hi!!
the formula for r<1 is used for Sum of Terms till Infinity!
it cannot be used here because the no. of terms is fixed (3 and 5) here!
the formula
whereas can only be used for r<1 and Sum to Infinity (not for 3 terms or 5 terms)
!!!
#494 Re: This is Cool » 1 4 2 8 5 7 and 2^n MYTH » 2010-03-29 20:41:57
u get one of the nos. out of the set {1, 4, 2, 8, 5, 7} if u take any no. out of this set and raise it to any power!!
just {0, 3, 6 9} are out of the set!
eg.
5^2=25=2+5=7
5^3=125=1+2+5=8
and so on...
Its quite obvios from the result of 2^n... Right??
#495 Re: Puzzles and Games » Hangman! » 2010-03-27 02:01:04
#497 Jokes » nice one » 2010-03-26 23:33:55
- ZHero
- Replies: 7
...
#498 Re: Jai Ganesh's Puzzles » 10 second questions » 2010-03-24 21:34:27
#499 Re: Help Me ! » find » 2010-03-24 14:30:46
in T.I.M.E.
However.. I'm planning to quit if i get an admission into a B-School!
I've a few friends in Bangalore (Karnataka)!!
Ur exams r Right Over ur Head.. and u're Not Really thorough with ur Preparation if u can't solve These Questions!
So plz Work Harder!
Nice to Meet u... Sweety!
#500 Re: Help Me ! » base numbers » 2010-03-24 02:28:00
how do i replace * by multiplication sign in LaTex???