dareensrar
dareensrar dareensrar
  • 30-09-2021
  • Mathematics
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15. Verify the identity. (20 points)
cos (x + pi/2) = -sin x
PLEASE!!!!!

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mirlande1985
mirlande1985 mirlande1985
  • 30-09-2021
-sin (x) is the identity
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