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Labor Day 2025: Celebrating Workers Across the Globe

Labor Day 2025: Celebrating Workers Across the Globe

Apr 23, 2025 |

Labor Day, celebrated worldwide, holds significant importance in honoring the contributions and sacrifices of workers. While its meaning may vary by country, the holiday serves as a time to reflect on labor rights, celebrate achievements, and promote better working conditions. In this article, we explore the origins, significance, and diverse ways Labor Day is observed globally, including in the United States, India, and the Philippines, and discuss how this day underscores the ongoing efforts to improve workers’ lives.

Find the values of sine and cosine for an angle of 45 degrees in the unit circle

Feb 18, 2025 |

Find the values of sine and cosine for an angle of 45 degrees in the unit circle

First, recall that in the unit circle, an angle of 45 degrees corresponds to $\frac{\pi}{4}$ radians.

From trigonometric identities:

$$\sin \frac{\pi}{4} = \frac{\sqrt{2}}{2}$$

$$\cos \frac{\pi}{4} = \frac{\sqrt{2}}{2}$$

Therefore, the values are:

$$\sin 45^\circ = \frac{\sqrt{2}}{2}$$

$$\cos 45^\circ = \frac{\sqrt{2}}{2}$$

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