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I have an equation in time domain as
& & & x(t)=0.09-0.0571*cos(w*t)-0.06741*sin(w*t)& & & & & & where, i want w=41 and 0.201<0.300
now i want to plot its Fourier transform.
I am trying for that since 2 days but i am unable to plot it.
Can u please solve this problem?

i need to simulate an electrical circuit in matlab using simulink.. and some exercises to do on the circuit related to design of control system. where can i get it done????

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how can I make a programme to solve simultaneous linear equation.