Title: PCSI / Maths / trigo

cos(a+b)

sin(a+b)

tan(a+b)

cos(a-b)

sin(a-b)

tan(a-b)

cos(a)*cos(b)

sin(a)*sin(b)

cos(a) * sin(b)

cos(2a)

sin(2a)

tan(2a)

cos(a) + cos(b)

sin(a) + sin(b)

cos(a) - cos(b)

sin(a) - sin(b)

Formules de l'angle moitié t=tan(a/2)