Verify if this is an identity
cot(-x) tanx=-1

Which is the completely factored from of xy^3-x^3y

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 angle 2=3x +1 and angle 3=2x +4what is angle 2