Question

calcule: k=tan20+tan80+tan100+tan160

Answer 1

Respuesta:

k=tan20+tan80+tan100+tan160

k = tan20 + tan160 + tan80 + tan100

k = sen(20+160)/tan20.tan160   +   sen(80+100)/tan80.tan100

k = sen180/tan20.tan160 + sen180/tan80.tan100

k = 0 + 0 = 0 porque sen180 = 0

k =0