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Posted on April 23, 2022 (Updated on July 9, 2025)

What is the terminal side of a unit circle?

Space & Navigation

The vertex is always placed at the origin and one ray is always placed on the positive x-axis. This ray is called the initial side of the angle. The other ray is called the terminal side of the angle.

What is the terminal side?

Definition of terminal side



: a straight line that has been rotated around a point on another line to form an angle measured in a clockwise or counterclockwise direction — compare initial side.

What is the terminal side of θ?

When the terminal side of an angle theta, that is in standard position , lies on the coordinate axes. (The angles for which either the x- or y-coordinate of a point on the terminal side of the angle is 0.)

How do you find the terminal side?

Video quote: Direction or direct horizontal position and then your terminal side is all going to depend if it's a positive angle. It's gonna open up counterclockwise. And if it's a negative angle.

What is the terminal side of data?

In this position, the vertex (B) of the angle is on the origin, with a fixed side lying at 3 o’clock along the positive x axis. The other side, called the ‘terminal side’ is the one that can be anywhere and defines the angle.



Terminal side of an angle – trigonometry.

Radians
✔ Degrees


What is the terminal side of 180?

The angles measuring between 90 and 180 degrees have their terminal sides in Quadrant II. Angles measuring between 180 and 270 have their terminal sides in Quadrant III, and those measuring between 270 and 360 have their terminal sides in Quadrant IV.

What is the radius of the unit circle?

1

In mathematics, a unit circle is a circle of unit radius—that is, a radius of 1. Frequently, especially in trigonometry, the unit circle is the circle of radius 1 centered at the origin (0, 0) in the Cartesian coordinate system in the Euclidean plane.

Where is one of the unit circle?

In mathematics, a unit circle is a circle with a radius of one. In trigonometry, the unit circle is the circle of radius one centered at the origin (0, 0) in the Cartesian coordinate system in the Euclidean plane. The point of the unit circle is that it makes other parts of the mathematics easier and neater.

Where is 1 on the unit circle?

In a unit circle, any line that starts at the center of the circle and ends at its perimeter will have a length of 1. So, the longest side of this triangle will have a length of 1.

What makes a circle a unit circle?

The “Unit Circle” is a circle with a radius of 1. Being so simple, it is a great way to learn and talk about lengths and angles. The center is put on a graph where the x axis and y axis cross, so we get this neat arrangement here.

How do you make a unit circle?

Video quote: So everybody should write down these 1 come 0 0 comma 1 negative 1 comma 0. And 0 comma negative 1. Right those are the basics. Then. If we don't go anywhere we're at 0 degrees.

Where did the unit circle come from?

Where the center of the circle is the origin on a graph. The unit circle and trigonometry date back to the 2nd millennium BC to Egyptian mathematics and Babylonian mathematics. The term “trigonometry” derives from the Greek “trigonometria”, meaning “triangle measuring”, from triangle + to measure.

How do you fill out a unit circle?

Video quote: And every big gap is a 30 degree gap. Right 30 degrees every little gap is a 15 degree cap. So really have to do is just add 15 here so 30 15 is 45. Plus 15 is 60 then I've got a big gap.

How do you fill out a unit circle in 5 minutes?

Video quote: This place is your y-axis. So it's 0. 1. We know this is x-axis again but this time is on the left side so it's negative 1 0 meaning it's a 1 0 but the X is now negative and over here it is a 0. 1.

How do you write Cosecant?

Cosecant is one of the main six trigonometric functions and is abbreviated as csc x or cosec x, where x is the angle. In a right-angled triangle, cosecant is equal to the ratio of the hypotenuse and perpendicular. Since it is the reciprocal of sine, we write it as csc x = 1 / sin x.

What is Sinx times COSX?

Answer : The expression for sin x + cos x in terms of sine is sin x + sin (π / 2 – x). Let us see the detailed solution now.

How do you write secant?

Secant (sec) – Trigonometry function



(See also Secant of a circle). In a right triangle, the secant of an angle is the length of the hypotenuse divided by the length of the adjacent side. In a formula, it is abbreviated to just ‘sec’.

What is cos over sin?

The cotangent of x is defined to be the cosine of x divided by the sine of x: cot x = cos x sin x .

Is YX a tan?

The unit circle definition is tan(theta)=y/x or tan(theta)=sin(theta)/cos(theta). The tangent function is negative whenever sine or cosine, but not both, are negative: the second and fourth quadrants. Tangent is also equal to the slope of the terminal side. We talked about the sine and cosine functions.

What is tan math?

Tangent, which is commonly abbreviated to three letters as T-A-N, is the ratio of the side opposite the angle we know, or want to know, over the side adjacent to that angle. The adjacent side is the one touching the angle that is NOT the hypotenuse, which is the side opposite the right angle.

How do you do trigonometry?

Video quote: Toa is equal to the opposite side divided by the adjacent. Side so that's the tangent ratio. It's opposite over adjacent. Now we know that cosecant is 1 over sine.

How do you do calculus?

Video quote: Now the second area of calculus that you want to know is derivatives. So what are derivatives. Well basically derivatives are functions that give you the slope of an original function at some value.

How do you teach Sin Cos tan?

Video quote: For the sine the O stands for the opposite. And the H stands for the hypotenuse. And you can do the same thing for the cosine in the equation the cosine is equal to the adjacent over the hypotenuse.

What is the hardest math class?

The Harvard University Department of Mathematics describes Math 55 as “probably the most difficult undergraduate math class in the country.” Formerly, students would begin the year in Math 25 (which was created in 1983 as a lower-level Math 55) and, after three weeks of point-set topology and special topics (for …

What is the most failed subject in high school?

Algebra

Algebra is the single most failed course in high school, the most failed course in community college, and, along with English language for nonnative speakers, the single biggest academic reason that community colleges have a high dropout rate.

Who has passed Math 55?

Bill Gates took Math 55.



To get a sense of the kind of brains it takes to get through Math 55, consider that Bill Gates himself was a student in the course. (He passed.) And if you’d like to sharpen your brain like Microsoft’s co-founder, here are The 5 Books Bill Gates Says You Should Read.

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