The sine ratio plays an important part in the refraction of light at the interface of two media through which the light travels - such as the interface between air and the glass of a lens.
Optics deals with light waves, and all waves relate in some way to trigonometry. Also, the reflection and refraction of light involves trigonometry.
I personally study trigonometry because it is absolutely exhilarating for me.
geometry
algebra
Trigonometry is specificly the study of a right triangle. For example, what is the cosine? Geometry is the study on shapes.
Optics deals with light waves, and all waves relate in some way to trigonometry. Also, the reflection and refraction of light involves trigonometry.
Some chemical reactions depend on the shape of molecules and the study of the shape of molecules - requires knowledge of trigonometry.
I personally study trigonometry because it is absolutely exhilarating for me.
Trigonometry is not important ever
Engineers and Physicists use trigonometry, as well as people whose carrers involve acoustics, optics, and waves.
Variously: physics, optics, quantum mechanics, etc.
geometry
geometry
algebra
Trigonometry is specificly the study of a right triangle. For example, what is the cosine? Geometry is the study on shapes.
Yes
Optics.