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arkababu

  • 3 years ago

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

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  1. mathmate
    • 3 years ago
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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.

  2. Callisto
    • 3 years ago
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    Sorry :(

  3. mathmate
    • 3 years ago
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    No worries! :)

  4. arkababu
    • 3 years ago
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    thanks

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