Find the distance between the points `( acostheta, asintheta) ` from the origin.

Explanation

To find the distance between the point \( (A \cos \theta, A \sin \theta) \) and the origin \( (0, 0) \), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Coordinates**:
- The coordinates of the origin are \( (0, 0) \).
- The coordinates of the point are \( (A \cos \theta, A \sin \theta) \).

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