`sin^2 16 0^(@)+sin^2 14 0^(@)+sin^2 10 0^(@)=`

Show that sin^(2)5^(@)+sin^(2)10^(0)+sin^(2)15^(0)+...+sin^(2)90^(@)=9(1)/(2)

sin50 ^ (@) - sin70 ^ (@) + sin10 ^ (@) = 0

"Show that "sin^(2)16^(@)+sin^(2)23^(@)+sin^(2)37^(@)+sin^(2)44^(0)=1+sin^(2)7^(0)+sin^(2)14^(@)

sin^(2)14^(@)+cos^(2)16^(@)-sin14^(@)cos16^(@)=

sin20^(0)sin40^(0)sin60^(0)sin80^(@)=(3)/(16)

Show that sin^(2)16^@+sin^(2)23^(@)+sin^(2)37^(0)+sin^(2)44^@=1+sin^(2)7^(0)+sin^(2)14^(@)

[sin^(2)5^(0)+sin^(2)10^(0)+sin^(2)15^(0)+...........],[+sin^(2)90^(0)=..........]

(cos20^(0)+8sin70^(0)sin50^(@)sin10^(0))/(sin^(2)80^(@)) is equal to

The value of the expression (tan^(2)20^(0)-sin^(2)20^(@))/(tan^(2)20^(0)+sin^(2)20^(@)) is

If A+B+C = 180^0 , Prove that : sin^2 (A/2) + sin^2 (B/2) + sin^2 (C/2) =1-2 sin (A/2) sin (B/2) sin (C/2)