cos 2x cos 2 x y2 sinxy2 sinx

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у = cos 2(x + у = cos 2 x )

у = cos 2(x + у = cos 2 x )

y=2 sin(xy=2 sinx y=sinx ) +1

y=2 sin(xy=2 sinx y=sinx ) +1

y=2 sin(x- ) +1

y=2 sin(x- ) +1