Respuesta :

Answer:

secθ = sqrt(74)/5, -sqrt(74)/5

Step-by-step explanation:

1 + tan²θ = sec²θ

1 + (7/5)² = sec²θ

1 + 49/25 = sec²θ

74/25 = sec²θ

secθ = sqrt(74)/5, -sqrt(74)/5