login  home  contents  what's new  discussion  bug reports     help  links  subscribe  changes  refresh  edit
IssueTracker
#176 Factored Polynomials aren't differentiated correctly  ← ↑ →  #178 Linear Agebra problem

#177 expand (cos (2*x))
  
last edited 16 years ago by kratt6

Edit detail for #177 expand (cos (2*x)) revision 1 of 2
1 2
Editor:
Time: 2007/11/17 22:03:02 GMT-8
Note: 
changed:
-
expand (cos (x+y)) and expand (cos (x+y+z)) are right.

Is it possible to expand cos (2*x) = 2*cos(x)^2-1 or 1 - 2*sin(x)^2

Submitted by : (unknown) at: 2007-11-17T22:03:02-08:00 (17 years ago)
Name :
Axiom Version :
Category : Severity : Status :
Optional subject :  
Optional comment :

expand (cos (x+y)) and expand (cos (x+y+z)) are right.

Is it possible to expand cos (2x) = 2cos(x)^2-1 or 1 - 2*sin(x)^2