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sic16 sic16
  • 12-06-2016
  • Mathematics
Answered

Find the exact values of cos 0 and sin 0 for -120

Verified Answer :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 15-06-2016

\(sin (-120) = sin(180-60)=sin60= \frac{ \sqrt{3} }{2} \\ cos(-120)=-cos(180-60)=-cos60=- \frac{1}{2}\)

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