A=(kx-（π/4）,kx+（π/4））B=（-2π,2π）,

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A=(kx-（π/4）,kx+（π/4））B=（-2π,2π）,A=(kx-（π/4）,kx+（π/4））B=（-2π,2π）,A=(kx-（π/4）,kx+（π/4））B=（-2π,2π）,(2π,

A=(kx-（π/4）,kx+（π/4））B=（-2π,2π）,
A=(kx-（π/4）,kx+（π/4））B=（-2π,2π）,

A=(kx-（π/4）,kx+（π/4））B=（-2π,2π）,
(2π,-7π/4）(-5π/4,-3π/4)(-π/4,π/4)(3π/4,5π/4)(7π/4,2π)