Sin 36. Cos6a cos2a-sin6a sin2a вычислить. Cos 36. Cos36+cos108. Sin6a+cos6a.
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Sin 5. Cos 12 cos 36. Cos36 cos72. Cos 12 cos 36. Синус 18.
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%3Dsin18%5E%5Ccirc%20%5C%5C%5C%5C4sin%5E218%3D%5Cfrac%7B2%5Ccdot%20sin18%5Ccdot%202sin18%5Ccdot%20cos18%7D%7Bcos18%7D%3D%5Cfrac%7B2%5Ccdot%20sin18%5Ccdot%20sin36%7D%7Bcos18%7D%20%3D%5Cfrac%7B2%5Ccdot%20%5Cfrac%7B1%7D%7B2%7D(cos18-cos54)%7D%7Bcos18%7D%3D%5C%5C%5C%5C%3D1-%5Cfrac%7Bcos54%7D%7Bcos18%7D%3D1-%5Cfrac%7Bcos(90-36)%7D%7Bcos18%7D%3D1-%5Cfrac%7Bsin36%7D%7Bcos18%7D%3D1-%5Cfrac%7B2sin18%5Ccdot%20cos18%7D%7Bcos18%7D%3D%5C%5C%5C%5C%3D1-2sin18%5C%3B%20%5C%3B%20%5Cto%5C%3B%20%5C%3B%204sin%5E218%3D1-2sin18%5C%5C%5C%5C4sin%5E218%2B2sin18-1%3D0%5C%3B%20%2C%5C%5C%5C%5Ct%3Dsin18%5E%5Ccirc%20%3E0%5C%3B%20%2C%5C%3B%20%5C%3B%204t%5E2%2B2t-1%3D0%5C%3B%20%2C%5C%5C%5C%5CD%2F4%3D1%2B4%3D5%5C%3B%20%2C%5C%3B%20%5C%3B%20%5C%3B%20t%3D%5Cfrac%7B-1%5Cpm%20%5Csqrt5%7D%7B4%7D%5C%3B%20%2C%5C%3B%20%5C%3B%20t%3E0%5C%3B%20%5C%3B%20%5Cto%20%5C%5C%5C%5Csin18%5E%5Ccirc%20%3D%20%5Cfrac%7B-1%2B%5Csqrt5%7D%7B4%7D%3Dcos72%5E%5Ccirc "Cos 12. Cos36*sin18. 5cos29/sin61. Cos 36. Cos 12 cos 36.")
Cos 12. Cos36*sin18. 5cos29/sin61. Cos 36. Cos 12 cos 36.
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Cos 36. Cos 36. Cos36 cos72. Sin 12. Cos 12 cos 36.
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Sin10+sin12. Cos 36. Cos 12 cos 36. Sin 11п/4. Cos 36.
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Cos 12 cos 36. Cos 72. Cos 36 градусов. Sin. Cos 48.
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Cos 24. Cos 12 cos 36. Cos 108. Cos 72. Синус 42.
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Cos 10п/12. Cos36 cos72. Cos 60. Cos 12 cos 36. Cos 12 cos 36.
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Cos36+cos108. Cos 12 cos 36. Cos 12 cos 36. Cos 36. Cos 12 cos 36.
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Cos36 cos72. Cos36 cos72. Син 36. Cos48-cos12 решение. Cos 12 cos 36.
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Cos 12 cos 36. Cos 12 cos 36. Cos 12 cos 36. Cos 12 cos 36. Sin12a/cos6a.
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36cos93/cos87 решение. Cos 108. Cos 12 cos 36. Синус 72. Синус 108.
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Cos 36. Cos 12 cos 36. Син 2+кос 2. Sin 12. Cos24+cos48-cos84-cos12.
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Sin4a+sin2a cos2a+cos2a. Син 12. Cos36 cos72. Cos 12 cos 36. Sin 1/12.
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Син 36. Sin 1/12. Cos 36. Cos 36. Cos 12 cos 36.
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Sin10+sin12. Sin 1/12. Синус 18. Cos36 cos72. Cos 36.
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Cos36 cos72. Cos 12 cos 36. Cos 12 cos 36. Cos 108. Cos 12 cos 36.
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Cos 12 cos 36. Синус 108. Cos 12 cos 36. Sin 11п/4. Sin 12.
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Cos 12 cos 36. Cos36+cos108. Cos 36. Cos 10п/12. Cos 36.
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Cos 12 cos 36. Cos 12 cos 36. Cos 12 cos 36. Cos36*sin18. Cos 12 cos 36.
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