1)Π ( K = 0; 1; 2...) D, ΔΦ = ( 2K - ( K = 0; 1; 2...)ΠC, ΔΦ...

1)π ( k = 0; 1; 2...) d, Δφ = ( 2k - 1 ) ( k = 0; 1; 2...)πc, Δφ = ( k + 21 π ) ( k = 0; 1; 2...)e, Δφ = ( k -