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First find an auxiliary equation, for the complimentary function:m^2 + 2m - 3 = 0, (m+3)(m-1)=0m=1 or m=-3So the complimentary function is: x= Ae^t + Be^-3tFor the particular integral (PI), let x = Ue^-tt...
Firstly please show me what was the topic and the example in class. Given the topic I will provide the answer and the easiest way to complete it. For example, let's say the student had to solve the ...
de Moivre's theorem gives us that (cos(x) + i sin(x))n = cos(nx) + i sin(nx), for integers n and real values x.Therefore cos(5x) + i sin(5x) = (cos(x) + i sin(x))5 = cos5(...
State de Moivre's theorem. Use n =5 and solve. I'll show this on the whiteboard.
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