sin(2x-[tex] \frac{ \pi }{4} [/tex])=sin1125°

sin(2x-pi/4)=sin(6pi+pi/4)sin(2x-pi/4)=sin(pi/4)sin(2x-pi/4)=√2/22x-pi/4= pi/4+2pi/k     2x=pi/2+2pi/k      x=pi/4+pi/k2x-pi/4= 3pi/4+2pi/k   2x= pi+2pk          x= pi/2+pi/k