| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 26 Mar 2008 19:37:38 IST
|
|
|
find the number of solutions of y= lsinlxll = x +lxl
|
its hard to manage cuZ everyday zz a challenge... n i am slipping .., can't loose up balance ..
i Try nOh to panic..! |
|
|
|
26 Mar 2008 19:42:18 IST
|
|
|
draw a graph..
it comes out to be the same graph as that of
|sin x|
now
x+|x|, for x>0, it is y=2x
for x<0, y=0
at every n(pi), value of f(x)=|sin x|=0
so -pi, -2 pi and 0 are solutions
for y=2x and y= |sin x|
sin x <=x for x>0
so sin x< 2x
so no solution in first quadrant
so only 3 solns
|
" Always remember money isn't everything but make sure you have made a lot of it before talking such nonsense!"
- Bill Gates |
this reply: 2 points
(with 0 
in 1 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
26 Mar 2008 19:50:34 IST
|
|
|
no boss...the answer is 1 soln...!
|
its hard to manage cuZ everyday zz a challenge... n i am slipping .., can't loose up balance ..
i Try nOh to panic..! |
this reply: 15 points
(with 3
in 3 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
26 Mar 2008 20:09:14 IST
|
|
|
then explain my mistake in these 3 points here...
|
" Always remember money isn't everything but make sure you have made a lot of it before talking such nonsense!"
- Bill Gates |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
26 Mar 2008 21:37:58 IST
|
|
|
I think akhil's answer is right
|
Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
27 Mar 2008 01:43:39 IST
|
|
|
2 explain akhil's answer u dun need graph...0,-pi,-2pi are obvious solutions
|
Nitwit Blubber Odment Tweak
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
|
|
Moderation Team
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
[-2
,2
![[Thumb - graph sin modxss.JPG]](/upload/2008/3/26/429aac7b002c0f71d2dfe066f07f355c_37348.JPG_thumb)
2
