Prove that: `"sin"20^0"sin"40^0"sin"60^0"sin"80^0=3/(16)`

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

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

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

Prove that: i) sin20^(@)sin40^(@)sin60^(@)sin80^(@)=3/16 ii) sin10^(@)sin50^(@)sin60^(@)sin70^(@)=sqrt(3)/16 iii) sin20^(@)sin40^(@)sin80^(@)=sqrt(3)/8

Prove that: sin10^(0)sin30^(0)sin50^(@)sin70^(@)=(1)/(16)

sin20^(@)sin40^(@)sin60^(@)sin80^(@)

sin20sin40sin80

sin 20^(@) sin 40^(@) sin 60^(@) sin 80^(@) =(3)/(16)

Prove that sin10+sin20+sin40+sin50=sin70+sin80