Find the equation of the circle, passing through the origin and cutting off intercepts 2a units and b units on the x-axis and y-axis respectively.

Explanation

To find the equation of the circle that passes through the origin and cuts off intercepts of 2a units on the x-axis and b units on the y-axis, we can follow these steps:

### Step 1: Identify the intercepts
The circle cuts off intercepts of 2a on the x-axis and b on the y-axis. This means:
- The x-intercept is at the point (2a, 0).
- The y-intercept is at the point (0, b).

### Step 2: Determine the center of the circle
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