用matlab解方程：cosx*sinhx+cosx*sinx-coshx*sinx-coshx*sinhx=(2cosx*coshx-cos^2x-cosh^2x).问x?后两个为：cosx的平方与coshx的平方.

用matlab解方程：cosx*sinhx+cosx*sinx-coshx*sinx-coshx*sinhx=(2cosx*coshx-cos^2x-cosh^2x).问x?
后两个为：cosx的平方与coshx的平方.

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......