Arismith7 Arismith7
  • 25-04-2017
  • Mathematics
contestada

2+cos(theta)=2sin^2(theta)

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Аноним Аноним
  • 25-04-2017
I hope this helps you


sin^2O+cos^2O=1


2+cosO=2 (1-cos^2O)


2+cosO=2-2cos^2O


cosO=2cos^2O


cosO=square root of2/2


O=pi/4


O=pi/4+2pi. n n € Z


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