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  • 17-02-2022
  • Mathematics
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Which expression is equivalent to sin

Which expression is equivalent to sin class=

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  • 17-02-2022

Answer:

sin(-pi/2) = -1

Step-by-step explanation:

sin (pi/12) cos((7pi)/12) -cos (pi/12) sin((7pi)/12) = -1

cos(-pi/2) = 0

sin(-pi/2) = -1

cos((2pi)/3) = -1/2

sin((2pi)/3) = (√3)/2

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