Question

formulas da trigonometria???:(

Answer 1

Fórmulas Básicas

sen(-x) = -sen x

cos(-x) = cos x

cos2x + sen2x = 1

1 + tan2x = sec2x

1 + cot2x = csc2x

sen 2x = 2sen x . cos x

cos 2x = cos2x – sen2x

sen2(x/2) = (1-cos x) / 2

cos (x/2) = (1 + cos x) / 2

sec2x = 1 + tg2x

cosses2x = 1 + cotg2x