However, consider the “the small angle approximation” 1 for the sine function: sinθ≈θ If the oscillations of the pendulum are “small”, such that th...However, consider the “the small angle approximation” 1 for the sine function: sinθ≈θ If the oscillations of the pendulum are “small”, such that the small angle approximation is valid, then the equation of motion for the pendulum is: d2θdt2=−gLsinθ≈−gLθ∴d2θdt2=−gLθ(for small θ) and the angle…