monnn3144 monnn3144
  • 11-04-2024
  • Mathematics
contestada

Which of the following is equivalent to cos alpha cos beta tan( alpha + beta ) for all values of alpha and beta for which cos alpha cos beta tan( alpha + beta ) is defined?
1) cos alpha + sin alpha sin beta tan( alpha + beta )
2) sin alpha + cos alpha sin beta tan( alpha + beta )
3) cos alpha + cos beta sin alpha tan( alpha + beta )
4) sin alpha + cos beta sin alpha tan( alpha + beta )

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