Is the sine and cosine of a 60 degree angle A in a right triangle always the same?
Answer
No.
Here are the “sames'”.
Sin(60 deg) = Cos(30 deg) = 0.866
Sin(30 deg) = Cos(60 deg) = 0.5
Sin(45 deg) = Cos(45 deg) = 0.7071
In general, Sin(x deg) = Cos([90 – x] deg)
For all real x.
