k5urymtmo9isyif k5urymtmo9isyif
  • 08-11-2016
  • Mathematics
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What is the exact value of cos 4/3 pi

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Аноним Аноним
  • 08-11-2016
The exact value of cos(43)cos43 cannot be found using sum and difference formulas or half-angle identities. The approximate decimal answer is 0.235237570.23523757.
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nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 12-11-2016
cos 4/3π = cos (π + π/3) = -cos π/3 = -0.5
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