- #1
mohlam12
- 154
- 0
hey,
i have to show that
[tex] \sin \left( 1/9\,\pi \right) \sin \left( 2/9\,\pi \right) \sin \left(
1/3\,\pi \right) \sin \left( 4/9\,\pi \right) = 3/16 [/tex]
i ve tried so many things, and i couldn't get to 3/16 , does anyone have any hints that are going to help me solve problems in that kind!? thanks!
i have to show that
[tex] \sin \left( 1/9\,\pi \right) \sin \left( 2/9\,\pi \right) \sin \left(
1/3\,\pi \right) \sin \left( 4/9\,\pi \right) = 3/16 [/tex]
i ve tried so many things, and i couldn't get to 3/16 , does anyone have any hints that are going to help me solve problems in that kind!? thanks!