Find the equation of the ellipse whose centre is at the origin, foci are `(1,0)a n d(-1,0)` and eccentricity is 1/2.

Explanation

To find the equation of the ellipse with the given parameters, we can follow these steps:

### Step 1: Identify the parameters of the ellipse
The center of the ellipse is at the origin (0, 0), and the foci are located at (1, 0) and (-1, 0). The eccentricity (e) is given as 1/2.

### Step 2: Understand the standard form of the ellipse
The standard equation of an ellipse centered at the origin is given by:
\[
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