The value of \(\cos\left(\frac{\pi}{4}\right)\) is \(\frac{\sqrt{2}}{2}\).

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Here are 5 related questions you might find interesting:
1. What is \(\sin\left(\frac{\pi}{4}\right)\)?
2. What is \(\cos\left(\frac{\pi}{3}\right)\)?
3. How do you calculate \(\cos\left(\frac{3\pi}{4}\right)\)?
4. What is the exact value of \(\tan\left(\frac{\pi}{4}\right)\)?
5. What is the value of \(\cos(0)\)?

**Tip:** Remember that \(\cos\left(\frac{\pi}{4}\right)\) is a commonly used trigonometric value, and knowing it can help simplify more complex problems involving angles.

Discover the value of cos(pi/4) and its significance in trigonometry. Understand the formula and calculation process for cos(pi/4), a fundamental trigonometric function.

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