Theta can take units of radians or degrees. However, the sine function itself does not have units. It returns a unit-less value.
Sin is a ratio and so has no units.
sin 300 = -sin 60 = -sqrt(3)/2 you can get this because using the unit circle.
The expression for the unit vector r hat in spherical coordinates is r hat sin(theta)cos(phi) i sin(theta)sin(phi) j cos(theta) k.
Law and Order Special Victims Unit - 1999 Sin 8-17 is rated/received certificates of: USA:TV-14
In the form of Sin90, the units would be degrees. If, however, it was the literal Sine, say, 0.564.... , I dont think there is a unit for it. Sin (Theta) means that it is an angle. The units for angles are normally expressed in either degrees or radians.
The sine of 210 degrees is equal to -1/2. This value can be derived from the unit circle, where 210 degrees is in the third quadrant, where sine values are negative. Specifically, sin(210°) corresponds to sin(210° - 180°) = sin(30°), and since sine is negative in the third quadrant, sin(210°) = -sin(30°) = -1/2.
Law and Order Special Victims Unit - 1999 Sin 8-17 was released on: USA: 27 March 2007 Hungary: 5 August 2009 Japan: 25 May 2011
To show that sin(90 degrees) is equal to 1, we can use the unit circle. At 90 degrees, the point on the unit circle has coordinates (0, 1), where the y-coordinate represents the sine value. Since the y-coordinate is 1 at 90 degrees, sin(90 degrees) is equal to 1. This can be visually represented on the unit circle diagramatically.
the only close answer i know is: eix = cos(x)+i*sin(x) where i is imaginary unit
all multiples of pi. pi, 2 pi, - pi, -2 pi and so on...
Sin Sin Sin was created on 2006-05-22.
I presume that you are asking: 2 * sin^2(x) + 5*sin(x) + 3 = 0 This one is actually easy and you can avoid doing any tedious calculations by noticing that the range of sin(x) is [-1,1] while the range of sin^2(x) is [0,1]. Also note that every time sin(x) = -1, sin(x)^2 = (-1)^2 = 1. Like good little Calculus students, we remember the unit circle which we memorized in high school trigonometry/advanced algebra/precalculus. The unit circle reminds us that sin(x) = -1 when x is (3/2) * pi. We also remember that sin(x) repeats itself for every 2*pi. So our solution set is: (3/2)*pi + 2*pi*n, where n is any integer.