sinxcos45-cosxsin45=1
sin(x-45)=1
х-п/4=п/2+2пк
х=п/2+п/4+2пк=3п/4+2пк
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sinxcos45-cosxsin45=1
sin(x-45)=1
х-п/4=п/2+2пк
х=п/2+п/4+2пк=3п/4+2пк