Secant Formula

The length of the hypotenuse, when divided by the length of the adjacent side, becomes the secant of an angle in a right triangle. It is written as Sec, and the formula for secant is:

The formula for secant theta

Sec X =

\(\begin{array}{l}\frac{Hypotenuse}{Adjacent Side}\end{array} \)

As we know there are six trigonometric functions and out of these, Secant, cotangent, and cosecant are hardly used.

More about Secant angles formula

Secant is Reciprocal of Cos, Sec x =

\(\begin{array}{l}\frac{1}{CosX}\end{array} \)

Examples of Secant Math Formula

Example 1: Find Sec X if Cos x = 38

Solution: As Sec X = 1/ Cos X



So, Sec X = 8/3

Practice Question for Secant trigonometry formulas

Q1) Find Sec x if tan x = 5/4.

Q2) Find Sec a, if cos a = 1/5

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