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The problem states that if the graph of \( y = \cos x \) is translated \( \frac{\pi}{2} \) units horizontally, it will coincide with the graph of \( y = \sin x \). We need to determine the direction of this translation.

### Solution:
The translation of \( y = \cos x \) to \( y = \sin x \) can be achieved by shifting the cosine function to the right. Here's why:

1. **Horizontal Shift of Cosine Function**: The function \( y = \cos x \) can be transformed into \( y = \sin x \) by shifting it \( \frac{\pi}{2} \) units to the right. This is because:
   - \( \cos(x - \frac{\pi}{2}) = \sin x \).
   
2. **Direction of Translation**: 
   - Translating \( \cos x \) to the right by \( \frac{\pi}{2} \) units aligns its peaks, valleys, and zero-crossings with those of \( \sin x \).

### Conclusion:
The correct direction of the translation is **to the right**.

If the graph of y = cos(x) is translated π/2 units horizontally, it will coincide with the graph of y = sin(x). Which direction should the translation go?

Discover how translating the graph of cos(x) by π/2 units horizontally coincides with sin(x). This trigonometry problem focuses on graph transformations and the relationship between cosine and sine functions.

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