sin10^(@)+sin20^(@)+sin40^(@)+sin50^(@)=sin70^(@)+sin

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Explore conceptually related problems

(i) sin10^(@)sin50^(@)sin70^(@)

sin20^(@)+sin40^(@)-sin80^(@)=

prove that sin10^(0)+sin20^(0)+sin40^(@)+sin50^(0)=sin70^(0)+sin80^(@)

sin10^(@)sin50^(@)+sin50^(@)sin250^(@)+sin250^(@)sin10^(@)=-(3)/(4)

Prove that sin10^(@) + sin20^(@) + sin 40^(@) + sin 50^(@) = sin 70^(@) + sin 80^(@)

sin10^(@)sin30^(@)sin50^(@)sin70^(@)sin90^(@)=

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

sin 10^(@) sin 30^(@) sin 50^(@) sin 70^(@) sin 90^(@)=

Prove that : sin 10^(@) + sin 20^(@) + sin 40^(@) + sin 50^(@) = sin 70^(@) + sin 80^(@).