I think you might be asking to find the angle whose sine = .41998
If so, we can us the sine inverse to find this...so we have
sin-1 (.41998) = about 24.83° ( note that this also might be a second quadrant angle, since the sine is also positive in that quadrant.....!!!)
However, you also might be asking about the sine of an angle with a radian measure of .41998...if so, we have...
sin(.41998) = 0.407742191199
I think you might be asking to find the angle whose sine = .41998
If so, we can us the sine inverse to find this...so we have
sin-1 (.41998) = about 24.83° ( note that this also might be a second quadrant angle, since the sine is also positive in that quadrant.....!!!)
However, you also might be asking about the sine of an angle with a radian measure of .41998...if so, we have...
sin(.41998) = 0.407742191199