## sin^2x + cos^2x =

### The identity you have written is a fundamental trigonometric identity called the Pythagorean identity

The identity you have written is a fundamental trigonometric identity called the Pythagorean identity. It states that for any angle “x” measured in radians or degrees, the sum of the squares of the sine and cosine of that angle is always equal to 1. Mathematically, it can be represented as:

sin^2x + cos^2x = 1

This identity holds true for any real value of “x” and can be easily proven using the unit circle or right triangles. This identity is widely used in trigonometry and calculus, as well as in various applications such as physics, engineering, and computer graphics.

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