What is the answer and solution? Merci!

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°.

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left