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Lag1989 problem №7.17

Content: L7_17_idz_student_.pdf (35.32 KB)
Uploaded: 06.02.2023

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Find the amplitude A and the initial phase of the oscillations resulting from the addition of the following oscillations of one direction: x₁ = 20cos (ɷt) (mm), x₂ = 20cos (ɷt пt / 3) (mm), x₃ = 20cos (ɷt 2пt / 3) ( mm). Write the equation for the resulting oscillations X (t).
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