Dfc (00;0) (0-1) 2x-1,2 12 953_2 49344 +x45= hs03. ww V-Sh logat-o Vx+ •Infaxabl.c J +3x+ lux costizanca) (2) Cos (2a)= (-2 sin(a) D 38. 2510(a) cos(a) </1-000 tan (2a) 2 tan(a) IN 圭 you fay ofbgirs

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