Sin(30) = 0.5 or (1/2)
Trigonometric data is integrated in your scientific calculator.
If tan 3a is equal to sin cos 45 plus sin 30, then the value of a = 0.4.
SQRT(3)/4 - 1/4
sin(40o) = 0.6428
Sin -30
It is: sin(62) = 0.8829475929.
If tan 3a is equal to sin cos 45 plus sin 30, then the value of a = 0.4.
Y=sin X is a function because for each value of X, there is exactly one Y value.
Sine(30) = 0.5 or 1/2
The value of sin A is 5.82 and the actual angle is 19.47 degees
sin(360+30) =sin(30)= 1/2
The value of sin(1) is 0.
sin(75) = sin(45 + 30) = sin(45)*cos(30) + cos(45)*sin(30) = [1/sqrt(2)]*[sqrt(3)/2] + [1/sqrt(2)]*[1/2] = 1/[2*sqrt(2)]*[sqrt(3) + 1] that is [sqrt(3) + 1] / [2*sqrt(2)]
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.
SQRT(3)/4 - 1/4
Sin(30) + cosec(30) = sin(30) + 1/sin(30) = 0.5 + 1/0.5 = 0.5 + 2 = 2.5
The exact value of sin 22.5 is 0.382683432
mostly it comes from memorization. If sin 30 = 1/2, then arcsin (1/2) = 30