, , . : 6 = 1 + 2 + 3.
, 31- , : (22216091 1)22216090. 1985 . () 22216091 1, .

" ", "" " ". .
18.03.2013

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1...2

cos(2 + 3x) = -2π/3.

: .


sin(cosx) = 0.

: x = ±π/2 + 2πn, nZ.


1...2
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