The following gives the formula for cos[2&thgr;]
The following gives the formula for sin [2 theta]
The following gives the formula for cos[4theta]
The following gives the formula for cos[25 theta]
The following gives the formula for cos[100 theta]
![[Graphics:indexgr2.gif]](indexgr2.gif)
![[Graphics:indexgr1.gif]](indexgr1.gif)
![[Graphics:indexgr3.gif]](indexgr3.gif)
![[Graphics:indexgr4.gif]](indexgr4.gif)
![[Graphics:indexgr5.gif]](indexgr5.gif)
![[Graphics:indexgr6.gif]](indexgr6.gif)
![[Graphics:indexgr7.gif]](indexgr7.gif)
![[Graphics:indexgr8.gif]](indexgr8.gif)
![[Graphics:indexgr9.gif]](indexgr9.gif)
![[Graphics:indexgr10.gif]](indexgr10.gif)
![[Graphics:indexgr11.gif]](indexgr11.gif)
![[Graphics:indexgr12.gif]](indexgr12.gif)
![[Graphics:indexgr13.gif]](indexgr13.gif)
![[Graphics:indexgr14.gif]](indexgr14.gif)
![[Graphics:indexgr15.gif]](indexgr15.gif)
![[Graphics:indexgr16.gif]](indexgr16.gif)
![[Graphics:indexgr17.gif]](indexgr17.gif)