What is the initial phase of a particle, in SHM, starting from an extreme position?

Explanation

To determine the initial phase of a particle in Simple Harmonic Motion (SHM) starting from an extreme position, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding SHM**: In SHM, the position of the particle can be described by the equation:
\[ x(t) = A \sin(\omega t + \phi) \]
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