|
|
|
|
|
| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 19 Jan 2007 07:35:09 IST
|
|
|
Prove that 2tan -1[tan(45-a)tan  /2] = cos -1[sin2a+cos /1+sin2acos ] |
sikha
Success is how high you bounce when you hit bottom. |
|
|
|
20 Jan 2007 15:47:16 IST
|
|
|
 Let tan-1[tan(45-a)tan/2] =  & cos-1[sin2a+cos/1+sin2acos]= To prove:
|
this reply: 5 points
(with 1 
in 1 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
24 Jan 2007 19:38:31 IST
|
|
|
Well done Asmita.
|
The Scientist does not study nature because it is useful; he studies it because he delights in it, & he delights in it because it is beautiful. If nature were not beautiful, it would not be worth knowing, life would not be worth living. Ofcourse I do not here speak of that beauty that strikes the senses, the beauty of qualities & appearances; not that I undervalue such beauty, far from it, but it has nothing to do with science; I mean that profounder beauty which comes from the harmoniuos order of the parts, & which a pure intelligence can grasp. |
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}
1
[(1/cos2 
