Question

Secθ =__________________

1/sinθ

+-√cos^2 +1

+-√tan^2 +1

Answer 1

secФ = ±
`\sqrt{1+tan^(2) }`

Explanation:

We can use the identity sec²Ф = 1 + tan²Ф to solve for secФ

• First we need to take the square root of both sides to get:
  `\sqrt{sec^(2) } =\sqrt{1+tan^(2) }` which then simplifies to
• secФ = ±
  `\sqrt{1+tan^(2) }`

Answer 2

The answer is last option

As we know 1 + tan^2 = sec^2