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arkababu Group Title

find the value of sin35degree sin55degree-cos35degree cos55degree.plss can u kindly show the steps

  • one year ago
  • one year ago

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  1. mathmate Group Title
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    It should read: cos(a)cos(b)-sin(a)sin(b)=cos(a+b) although it would not make a difference in this case.

    • one year ago
  2. Callisto Group Title
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    Sorry :(

    • one year ago
  3. mathmate Group Title
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    No worries! :)

    • one year ago
  4. arkababu Group Title
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    thanks

    • one year ago
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spraguer (Moderator)
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