- #1
Ronnin
- 168
- 1
Quick question. If i pass into a trig function something like cos(3pi*15 seconds), do I drop the seconds from the resultant answer since it's not a valid unit of measure for theta?
Integral said:If your problem is well expressed you will find that the factor (in your case) of 3 [itex] \pi [/itex] has units of 1/s . Thus you do not drop the seconds, they cancel out.
The most commonly used units of measure for trigonometric arguments are degrees and radians. However, other units such as turns, gradians, and mils can also be used.
To convert from degrees to radians, multiply the number of degrees by π/180. To convert from radians to degrees, multiply the number of radians by 180/π.
Yes, both positive and negative values can be used as trigonometric arguments. Positive values represent angles in a counterclockwise direction, while negative values represent angles in a clockwise direction.
The size of a trigonometric argument can vary, but it is typically limited to values between 0 and 360 degrees, or 0 and 2π radians. However, larger values can be used in certain contexts, such as in spherical trigonometry.
Yes, there are a few special cases for trigonometric arguments. Some common examples include 0 degrees/radians, which has a sine and tangent of 0 and a cosine of 1, and 90 degrees/radians, which has a sine of 1 and a cosine and tangent of 0.