# Whats sec in trig?

**Asked by: Alva Dach**

Score: 4.3/5 (12 votes)

Today we discuss the four other trigonometric functions: tangent, cotangent, secant, and cosecant. ... 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 .

One may also ask, What is sec for Trig?

Secant (sec) - Trigonometry function

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'.

Keeping this in mind, Is sec the inverse of cos?. The secant ( sec ) (\sec) (sec)

The

**secant is the reciprocal of the cosine**. It is the ratio of the hypotenuse to the side adjacent to a given angle in a right triangle.

In this manner, How do you find sec A?

The secant of an angle in a right triangle is the value found

**by dividing length of the hypotenuse by the length of the side adjacent the given angle**. The secant ratio is the reciprocal of the cosine ratio.

What is sec on a calculator?

Description. Secant function. SEC(x)

**returns the secant of x**. ... To convert degrees to radians you use the RADIANS function.

**24 related questions found**

### What is sec of an angle?

In a right angled triangle, the secant of an angle is: **The length of the hypotenuse divided by the length of the adjacent side**. The abbreviation is sec. sec(θ) = hypotenuse / adjacent. It is not commonly used, and is equal to 1/cosine.

### Is cot the same as tan 1?

**Cotangent is not same as tangent inverse**. Cotangent function is equal to the reciprocal of tangent function.

### How is sec theta calculated?

The **reciprocal cosine function** is secant: sec(theta)=1/cos(theta). The reciprocal sine function is cosecant, csc(theta)=1/sin(theta). The reciprocal tangent function is cotangent, expressed two ways: cot(theta)=1/tan(theta) or cot(theta)=cos(theta)/sin(theta).

### What is the value of sec A?

The sec of an angle in a right triangle is the ratio of the length of the hypotenuse to the length of the adjacent side. Secant can be easily replaced by cos x using the formula, **sec x = 1 / cos x.**

### What is the exact value of sec 45 degree?

Answer: The exact value of sec 45° is **√2**.

### What is sec inverse equal to?

**sec ^{−}^{1}x = sec^{−}^{1}(x)**, sometimes interpreted as (sec(x))

^{−}

^{1}= 1sec(x) = cos(x) or cosine of x, the multiplicative inverse (or reciprocal) of the trigonometric function secant (see above for ambiguity)

### What is cos 2 equal to?

Cos 2x is one of the double angle trigonometric identities as the angle in consideration is a multiple of 2, that is, the double of x. Let us write the cos 2x identity in different forms: **cos 2x = cos ^{2}x - sin^{2}x**.

**cos 2x = 2cos**.

^{2}x - 1### What is Cos inverse equal to?

With inverse cosine, we select the angle on the top half of the unit circle. Thus cos^{-}^{1} (–½) = 120° or **cos ^{-}^{1} (–½) = 2π/3**. In other words, the range of cos

^{-}

^{1}is restricted to [0, 180°] or [0, π]. Note: arccos refers to "arc cosine", or the radian measure of the arc on a circle corresponding to a given value of cosine.

### What is sec and its function?

The Securities and Exchange Commission (SEC) is a **U.S. government oversight agency responsible for regulating the securities markets and protecting investors**. ... The SEC can itself bring civil actions against lawbreakers, and also works with the Justice Department on criminal cases.

### What is the shortest side of a 30 60 90 Triangle?

Explanation: Ina 30-60-90 right triangle the shortest side which is opposite 30 degree angle is **half of the hypotenuse**.

### How do you convert sin into cos?

All triangles have 3 angles that add to 180 degrees. Therefore, if one angle is 90 degrees we can figure out Sin Theta = Cos (90 - Theta) and **Cos Theta = Sin** (90 - Theta).

### What is the minimum value of SEC A?

Minimum value of sec a and cosec a is **1**. As the minimum value will always be sec 0° or cosec 0° which is 1.

### What is the max value of 1 sec?

Hence, the max. value of 1/sec0∘=**1/1=1**.

### What is minimum value of sec theta?

At θ = π/2 +ε , sec(θ) = -Infinity; At θ = π , sec(θ) = - 1; At θ = 3π/2 -ε, sec(θ) = -Infinity; Note2: In this interval sec(θ) has a minimum of **-Infinity** , and a max of -1.

### What is value of 1 cos theta?

Answer: The value of (1 + cos θ) / (1 - cos θ) is **tan ^{2} θ / ( sec θ - 1)**

**. Let's solve step by step. Explanation: To evaluate: (1 + cos θ) / (1 - cos θ)**

^{2}### Is cot the inverse of tan?

cot(x) = 1/tan(x) , so **cotangent is basically the reciprocal of a tangent**, or, in other words, the multiplicative inverse.

### Where is SEC negative?

The sign of sec(t) matches the sign of cos(t) and thus is positive in Quadrant I, negative in **Quadrant II**, negative in Quadrant III, and positive in Quadrant IV.