Photos Y SIN COS Π X

< Previous photo
Photo - 49
Next photo >
Y sin cos π x. 2sin(x+1×π/3 )+2^2sin(x+2×π/3 ) + .... Sin2 x/4 cos2 x/4 3/2. Sin^2x+cos2x<1 окружность. 2cos2x -7 cos x-4=0.
2sin(x+1×π/3 )+2^2sin(x+2×π/3 ) + .... Sin2 x/4 cos2 x/4 3/2. Sin^2x+cos2x<1 окружность. 2cos2x -7 cos x-4=0.

See also