I have one answer I need the other one simply help quick I put 100 points

1- identificar select the category that corresponds to each term. january 23 11: 59 pm unlimited attempts remaining grade settings 276-279 vocabulary list modelo fiesta quinceañera casada adolescencia viudo juventud navidad niñez vejez aniversario de bodas divorciado madurez cumpleaños soltera

If the value of cos330°is√3/2 then find cos 165°.

Answer! if you don’t mind, can you explain