Question: I need your help for this pocedure

Hello, everbody!

 

1)Dr:=[[1,5],[2,6],[4,7]];

2)Y:=proc(i) Dr[i,2] end proc

3)ty:=proc(i) Dr[i,1] end proc

4)P[X](omega) = (1/2)*{(Sum(Y(j)*cos(omega*(ty(j)-1/(2*omega*tan((Sum(sin(2*omega*ty(j)), j = 1 .. N[0]));

1, 2, and 3 are known. I want to count 4, but I don`t know how I have to do this. Please help me.

 

Thanks...

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