Respuesta :

Answer: Secant of angle A = √2

Step-by-step explanation:

From the given right angle triangle,

AB represents the hypotenuse of the right angle triangle.

With m∠B as the reference angle,

AC represents the adjacent side of the right angle triangle.

BC represents the opposite side of the right angle triangle.

To determine Cosine of m∠A, we would apply

the cosine trigonometric ratio.

Cos θ = adjacent side/hypotenuse. Therefore,

Cos A = √5/√10

Secant = 1/Cosine

Therefore,

Secant of angle A = √10/√5 = √2

Answer:

The secant of angle is  A = √2