vivian2005lam vivian2005lam
  • 17-12-2021
  • Mathematics
contestada

sin(83o)cos(7o) + cos(83o)sin(7o) =

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jimthompson5910 jimthompson5910
  • 17-12-2021

Use the trig identity

sin(A)cos(B) + cos(A)sin(B) = sin(A+B)

to get the following:

sin(83)cos(7) + cos(83)sin(7) = sin(83+7)

sin(83)cos(7) + cos(83)sin(7) = sin(90)

sin(83)cos(7) + cos(83)sin(7) = 1

Answer:  1

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