sin(a).sin(2a)----------sin(na)=sin(n+1/2a).sin(n/a)/sin(a/2)
sin(a).sin(2a)----------sin(na)=sin(n+1/2a).sin(n/a)/sin(a/2)

Last Activity: 3 Years ago

Last Activity: 3 Years ago

Last Activity: 3 Years ago

Last Activity: 3 Years ago

Last Activity: 3 Years ago