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# What does the secant line represent?

## What does the secant line represent?

A secant line, also simply called a secant, is a line passing through two points of a curve. In geometry, a secant line commonly refers to a line that intersects a circle at exactly two points (Rhoad et al. 1984, p. 429).

### What is the slope of the secant line through the points?

The slope of the secant line is also referred to as the average rate of change of f over the interval [x,x+Δx].

#### Which angles are formed by two secant lines?

If two lines intersect outside a circle , then the measure of an angle formed by the two lines is one half the positive difference of the measures of the intercepted arcs . In the circle, the two lines ↔AC and ↔AE intersect outside the circle at the point A .

How to calculate the secant?

How to calculate secant First, you need to determine what information is available to you. The next step is to plug these values into the above equation so sec x = 5/4 = 1.25. The last step would be to use the actual angle to check this. To do this you would simply need to enter the angle into the formula 1/cosx. Analyze the results.

What is the difference between secant and cosine?

As nouns the difference between secant and cosine is that secant is (geometry) a straight line that intersects a curve at two or more points while cosine is (trigonometry) in a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse symbol: cos.

## What is secant the inverse of?

The secant is the inverse of the cosine. The reciprocal of the abscissa of the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of length x and measured counterclockwise from the point (1, 0) if x is positive or clockwise if x is negative.

### Is secant 1 over cosine?

Let’s recall that secant is 1 over cosine theta and so it inherits a lot of properties from cosine theta. For example cosine theta is even so is secant and it’s easy to show that. Secant of negative theta is 1 over cosine of negative theta and that’s of course cosine theta.