Sine^2 Sum

Geometry Level 2

sin2(1)+sin2(2)+sin2(3)++sin2(360)= ?\large \sin ^{ 2 }{( 1^\circ) } +\sin ^{ 2 }{( 2^\circ) } +\sin ^{ 2 }{ (3^\circ)+\ldots +\sin ^{ 2 }{ (360^\circ) } } = \ ?

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