Why does inverse trig functions have restrictions Function explanation

The video tutorial explains the concept of angles in a circle, focusing on the sine function. It discusses how a specific angle like π/4 has a single sine value, making it a function. However, when given a point, multiple angles can correspond to it, leading to infinite solutions. To maintain the function property, angles are restricted to specific quadrants, ensuring one output per input. This restriction is crucial for sine and cosine functions to work correctly.

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