# What Is Secant In Mathematics?

## What is the SEC formula?

The tangent of x is defined to be its sine divided by its cosine: The secant of x is 1 divided by the cosine of x: sec x = 1 cos x, and the cosecant of x is defined to be 1 divided by the sine of x: csc x = 1 sin x.

## What is meant by Secant?

In geometry, a secant of a curve is a line that intersects the curve at a minimum of two distinct points. The word secant comes from the Latin word secare, meaning to cut. In the case of a circle, a secant will intersect the circle at exactly two points.

## What is the difference between secant and chord?

In a secant, the line intersects the circle at two points. Difference between a secant and a chord.

Secant Chord
It is drawn from outside the circle It lies within the circle

## What is the formula for cos3x?

We must remember the formula cos(A+B)=cosAcosBâˆ’sinAsinB. From this given formula we first need to find the value of cos2x and then from this, we can very easily find out our required value of cos3x.

## How many Secant can a circle have?

If you are taking only one point,which is external to the circle then two tangent and infinite secant can be drawn. If you are taking the whole circle, then infinite tangent and infinite secant can be drawn on it.

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## What is Secant the opposite of?

The three most common trigonometric ratios are sine, cosine, and tangent. Cosecant is the reciprocal of sine. Secant is the reciprocal of cosine. Cotangent is the reciprocal of tangent.

## What does chord mean?

A line segment connecting two points on a curve. Example: the line segment connecting two points on a circle’s circumference is a chord. When the chord passes through the center of a circle it is called the diameter.

## Is a chord a ray?

Chords: A chord of a circle is a segment that you draw from one point on the circle to another point on the circle. A chord always stays inside the circle. Tangent: A tangent to a circle is a line, ray, or segment that touches the outside of the circle in exactly one point. It never crosses into the circle.

## Does a secant line contains a chord?

A secant line is a line that intersects a circle at two points. Every secant line, therefore, contains a chord of the circle it intersects.

## What is the formula for secant and tangent?

Tangent and Secant Formula: If a secant and a tangent of a circle are drawn from a point outside the circle, then the product of the lengths of the secant and its external segment equals the square of the length of the tangent segment.

## What is the secant line of a function?

A secant line is a straight line joining two points on a function. It is also equivalent to the average rate of change, or simply the slope between two points. The average rate of change of a function between two points and the slope between two points are the same thing.

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## How do you find the equation of a line?

Find the Equation of a Line Given That You Know a Point on the Line And Its Slope. The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept.