sin è=?

O=8
H=16

"Sine" (sin) is a mathematical function that calculates the ratio of the length of the side opposite an angle in a right triangle to the hypotenuse of the triangle. It is used extensively in trigonometry.

However, in your question, it seems that you are providing some equations or number assignments without a clear context. It is unclear how they relate to the sine function. Please provide more information or clarify your question so that I can assist you better.