Report copyright - IES LA - Junta de Andalucía · f senx +2 = 3cos2x g) sen(π −x) = cos 3π 2 −x h cos4x+ cos2x = 0 i) 3sen2x· cosx = 2sen3x j cosx +sen2(x/2) = 1 k) senx+ sen5x = sen4x +sen2x
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