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![[Post New]](/templates/default/images/icon_minipost_new.gif) 9 Apr 2008 22:54:59 IST
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Hey, The points represented by a(vector),b,c,d are coplarar and (sinA)a + (2sin2B)b + (3sin3C)c - 4d =0 , then the minimumm value of sin 2 A +sin 22B +sin23C is?
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GIVE LIFE THE BEST....srini...
DO OR DIE, OR BETTER NEVER TRY!!
I dont want to be the most intelligent among the ten.i pray the other nine RE fools!???!!!!!!
it doesn't matter if you win... whats important to me is i win!!!!!!!! |
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9 Apr 2008 23:33:28 IST
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The darked ones means vectors?
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I AM NOT TOTALLY USELESS.. I CAN BE A BAD EXAMPLE!!
\\****MOST OF US WORK ON THE PRINCIPLE OF ROCKETS,WE DONT START UNLESS OUR U KNOWAT IS ON FIRE******\\ |
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10 Apr 2008 17:12:19 IST
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0?
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There is no better feeling in this world than being a winner! |
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10 Apr 2008 22:25:06 IST
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Hey, sorry thats not the answer(as far as i remember) .
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GIVE LIFE THE BEST....srini...
DO OR DIE, OR BETTER NEVER TRY!!
I dont want to be the most intelligent among the ten.i pray the other nine RE fools!???!!!!!!
it doesn't matter if you win... whats important to me is i win!!!!!!!! |
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10 Apr 2008 22:57:28 IST
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Hey, please attempt..
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GIVE LIFE THE BEST....srini...
DO OR DIE, OR BETTER NEVER TRY!!
I dont want to be the most intelligent among the ten.i pray the other nine RE fools!???!!!!!!
it doesn't matter if you win... whats important to me is i win!!!!!!!! |
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10 Apr 2008 23:07:39 IST
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is the answer 16d2 /( a2 + 4b2 + 9 c2)
use (Aa + Bb +Cc)2  ( A2 + B2 + C2 ) (a2 + b2 + c2 )
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10 Apr 2008 23:14:01 IST
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please reply
I AM WAITING
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10 Apr 2008 23:35:48 IST
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are u there srini
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10 Apr 2008 23:36:16 IST
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Hey, hmmm..sorry but it is 8/7.
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GIVE LIFE THE BEST....srini...
DO OR DIE, OR BETTER NEVER TRY!!
I dont want to be the most intelligent among the ten.i pray the other nine RE fools!???!!!!!!
it doesn't matter if you win... whats important to me is i win!!!!!!!! |
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10 Apr 2008 23:55:59 IST
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a, b, c, d are coplanar
so we can take a = b = c = d(as any one vector can be the linesr sum of other vectors)
put in the above proved solution we can get the answer
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11 Apr 2008 00:19:33 IST
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see srini there is a theorum
a and A are 2 separate quantities
and Aa is their product
like (x + 2y + 3z)^2 < 14 ( x^2 + y^2 + z^2)
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