Question

Sin² 72⁰ + cos² 72⁰ ????​

Answer 1

Ответ:

131

Объяснение:

Answer 2

The trigonometric identity you're referring to is the Pythagorean trigonometric identity, which states:

sin²(θ) + cos²(θ) = 1

So, for your specific case where θ is 72 degrees:

sin²(72°) + cos²(72°) = 1

This equation should always hold true for any angle θ in degrees. Therefore:

sin²(72°) + cos²(72°) = 1