Sin theta of 30 degrees is1/2
4 sin(theta) = 2 => sin(theta) = 2/4 = 0.5. Therefore theta = 30 + k*360 degrees or 150 + k*360 degrees where k is any integer.
sin(21 deg) = 0.3584
x = sin-1 (4/15) ( sin -1 is [SHIFT] [sin] on a calculator ) = 15.5
No. Cosine, along with sec, is an even function. The odd functions are sin, tan, csc, and cot. The reason for this is because is you take the opposite of the y-value for the cosine function, the overall value of the function is not affected.Take, for example, cos(60 degrees), which equals POSITIVE 1/2.If you flip it over the x-axis, making the y's negative, it becomes cos(-60 degrees), or cos(300 degrees). This equals POSITIVE 1/2.Now let's look at an odd function. For example, sin(30 degrees) equals POSITIVE 1/2. Now take the opposite of this.sin(-30 degrees), or sin(330 degrees), equals NEGATIVE 1/2. This is because it is found in the fourth quadrant, where the y's are negative. Sine of theta, by definition, is y divided by r. If y is negative, sine is negative.
Sin30 degrees is 0.50000
SQRT(3)/4 - 1/4
Sin theta of 30 degrees is1/2
sin(360+30) =sin(30)= 1/2
It is:- sin(40) = 0.6427876097
It is: sin(62) = 0.8829475929.
sin(35 deg) = 0.5736
The exact value is 0.40673664.
0.57358
0.4226182617
-0.5
0.3584