Respuesta :

elliottou

Answer:

sec(a) = 2

Step-by-step explanation:

Secant = 1/cos(x)

cos(A) = adjacent A/Hypotenuse

1/cos(a) = hypotenuse/Adjacent A

sec(a)= [tex]\frac{2\sqrt{5} }{\sqrt{5} }[/tex]=2

Answer: secant 2: option A

Step-by-step explanation:

Secant =1/cosx

Since cosx= adjacent /hypotenuse

1/ adjacent /hypotenuse

1*hypotenuse/adjacent

Secant= hypotenuse /adjacent

Secant=2√5/√5

multiply both numerator and denominator by √5

Secant =2√5*√5/√5*√5

Secant =2√25/√25

√25=5

2*5/5

Secant=2