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![[Post New]](/templates/default/images/icon_minipost_new.gif) 17 Mar 2008 13:13:03 IST
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HEY, PLEASE TRY.. (COS8X-COS7X)/(1+2COS5X)
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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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17 Mar 2008 13:19:36 IST
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one doubt....it isnt cos^8x, na??
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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17 Mar 2008 13:27:24 IST
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HEY, NO NO POWER ...
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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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17 Mar 2008 13:28:54 IST
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oks
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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17 Mar 2008 13:29:24 IST
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its an arihant sum so refer it :D Not the same but sth similar
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17 Mar 2008 13:32:07 IST
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HEY, @SANDEEP.. I DONT HAVE .. COULD YOU PL POST
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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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17 Mar 2008 13:33:09 IST
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sure its not cos8x+cos7x or probably 1-cos5x
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17 Mar 2008 13:35:29 IST
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HEY, IT WAS GIVEN BY ME FRIEND.. COULD HAVE BEEN A MISTAKE.. BUT STILL HOW TO PROCEED.
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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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17 Mar 2008 13:38:37 IST
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no the sum is correct but the sum in my book has 1+ 2cos5x . The method is by finding the value of the numerator in terms of sin using cos A + cos B formula and then multiplying n dividing by sin 5x/2 to get a beautiful simplification
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17 Mar 2008 13:46:24 IST
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I saw that sandeep
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17 Mar 2008 13:48:44 IST
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HEY, YOU MEAN IN DENO?
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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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17 Mar 2008 13:49:23 IST
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HEY, SORRY, OK.. ANTHA BEAUTIFUL SIMPLIFICATION VARAA MATINGITHEY!
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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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17 Mar 2008 14:09:55 IST
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first use cos c - cosd n in den write 2cos^2x\2 then in num use formula of sin3x hope u got this plz rate me if useful!!!!!!!!
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17 Mar 2008 14:16:57 IST
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no u will get it Refer page 16 of arihant if you have it
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17 Mar 2008 14:17:35 IST
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im too lazy to post the soln plz forgive me but typing is tedious
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