|
|
|
|
|
| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 23 Dec 2007 15:15:19 IST
|
|
|
put x= tant
then it will become (cost)^4 ....
u can write it as [(1+cos 2t) /2]^2
now open the brackets and write (cos 2t) ^2= 1+cos 4t /2
|
this reply: 10 points
(with 2 
in 2 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
|
|
|
|
|
|
|
Moderation Team
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
