Determine the frequency of the seventh harmonic for the Fourier series represented E as x(t) = 5 + 50 cos 150mt - 40 sin 150mt - 36 cos 250mt + 48 sin 250mt + 24 cos 350rt+27 sin 350rt - 18 cos 450mt 15 sin 450mt.

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A: Step 1: Step 2: Step 3: Step 4:

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Q: cos(sin1(0.8182)) O -1.4251 O -0.4251 O 0.5749 O 1.5749 O 2.5749

A: Inverse

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Q: 71. Use Figure 4 to prove V1- 12 d /1 – x2 + sinx FIGURE 4

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