Circuit Theory When current in an electrical circuit is in the form of a sine or cosine wave, it is called alternating current. Two alternating current waves, with wave forms y1(x) = 10 sin(50 ??x) and y2(x) = 10 cos (50 ??x), respectively, interfere with each other to produce a third wave whose wave form is y(x) = y1(x) + y2(x). Find the exact value of the positive number A and the number c in [0, 2??)such that y(x) = A sin(50??x + c).
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