arkababu
find the value of sin35degree sin55degreecos35degree cos55degree.plss can u kindly show the steps



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mathmate
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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.

Callisto
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Sorry :(

mathmate
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No worries! :)

arkababu
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thanks