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Cos(30) = sqrt(3)/2 = 0.866025403.... ( Which is irrational).
What else can I help you with?
What is the cosine of a 30 degree angle?
As a decimal: 0.866 As a fraction: √(3)/2
How do you find an angle using sine cosine tangent?
First make sure your calculator is in 'Degree Mode (D)'. Then using the 'Inverse' of 'Sin' , shown as 'ArcSin' or ' Sin^(-1)' . enter '0.5', followed by '=' . The answer should be '30' ( 30 degrees).
What fraction of a pie graph is 30 degrees?
Since a complete circle is 360 degrees, a 30-degree part of a circle is 30/360, or 1/12, of the pie.
Is the cosine function an odd function?
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.
What is the value of sin 30 degrees?
Sine(30) = 0.5 or 1/2
How do you find cosine squared at 30 degrees?
cos(30) = sqrt(3)/2 so cosine squared is 3/4.
What is cosine 30 degrees?
0.866 ( or (sqrt 3)/2 )
What is the cosine of a 30 degree angle?
As a decimal: 0.866 As a fraction: √(3)/2
What is the cosine 30 degrees?
cos(30 deg) = sqrt(3)/2 = 0.8660 approx.
How many degrees are there in a twelfth turn?
30 degrees
How many degrees in a twelfth of a turn?
30 degrees
How do you turn 30 to a fraction?
30 = 30/1 = 60/2 and so on.
What fraction of a turn is 144 degrees?
A full turn is 360 degrees Therefore 144 degrees = 144/360 turn = 12/30 = 6/15 = 2/5 turn
How do you find an angle using sine cosine tangent?
First make sure your calculator is in 'Degree Mode (D)'. Then using the 'Inverse' of 'Sin' , shown as 'ArcSin' or ' Sin^(-1)' . enter '0.5', followed by '=' . The answer should be '30' ( 30 degrees).
What fraction of a full rotation is 30 degrees?
1/12
What the only formula you can find the exact value of cosine 30?
Cosine(30) = sqrt(3)/2
How do you turn the number 0.3666666 into a fraction?
It is 11/30.
