Why FriCAS gives zero on this integral?
FriCAS Computer Algebra System
Version: FriCAS 1.3.6
Timestamp: Mon 09 Mar 2020 12:35:03 PM CDT
(1) -> integrate(cos(x)*cos(2*x)*sin(3*x)/(-5+4*sin(x)^2)^(5/2),x)
(1) 0
This is #425 in Timofeev test suite. No error or any other message is given.
Sysop: | Keyop |
---|---|
Location: | Huddersfield, West Yorkshire, UK |
Users: | 307 |
Nodes: | 16 (2 / 14) |
Uptime: | 58:05:24 |
Calls: | 6,914 |
Calls today: | 4 |
Files: | 12,379 |
Messages: | 5,430,825 |