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[cos56^(0)+cos58^(0)-cos66^(@)-4cos28^(0...

[cos56^(0)+cos58^(0)-cos66^(@)-4cos28^(0)cos29^(0)sin33^(0)=],[[" 1) "0," 2) "1," 3) "-1]]

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cos56^(@)+cos58^(@)-cos66^(@)-4cos28^(@)cos29^(@)sin33^(@)=

(1+cos56^(@)+cos58^(@)-cos66^(@))/(cos28^(@)cos29^(@)sin33^(@))=

1+cos56^(@)+cos58^(@)-cos66^(@)=?

(1+cos56^(@)+cos58^(@) -cos66^(@))/(cos28^(@)cos29^@sin33^(@)) =

1+cos56^@+cos58^@-cos66^@=

1+cos 56^0 + cos 58^0 - cos 66^0=4cos 28^0 cos 29^0 sin 33^0 .

1+cos 56^0 + cos 58^0 - cos 66^0=4cos 28^0 cos 29^0 sin 33^0 .

cos 56 ^(@) + cos 58^(@) - cos 66^(@) - 4 cos 28^(@) cos 29^(@) sin 33 ^(@) =

If cos56^(0)+cos58^(0)-cos66^(0)-4cos28^(0)-cos29^(@)sin33^(@)=lambda then |2 lambda|=