The displacement of a harmonic oscillator is given by `x=alpha sin omegat+beta cosomegat`. Then the amplitude of the oscillator is,
The displacement of a harmonic oscillator is given by `x=alpha sin omegat+beta cosomegat`. Then the amplitude of the oscillator is,
A. `alpha`
B. `beta`
C. `alpha+beta`
D. `(alpha^(2)+beta^(2))^(1//2)`
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