Simplifying a trigonometric expression by factoring the trinomial

What are the factors of the quadratic expression X^2 + 2X + 1?

• (X + 1)(X + 1)

• (X + 2)(X + 2)

• (X + 2)(X - 1)

• (X + 1)(X - 1)

How does the expression X^4 factor when using the example X^2 + 1?

• (X^2 + 1)(X^2 + 1)

• (X^2 + 2)(X^2 - 1)

• (X^2 + 1)(X^2 - 1)

• (X^2 + 2)(X^2 + 2)

What happens to the factors when X is replaced with tangent in the expression X^2 + 1?

• They become tangent of X - 1

• They become tangent squared of X - 1

• They become tangent squared of X + 1

• They become tangent of X + 1

What is the identity for tangent squared plus one?

• Cosecant squared

• Sine squared

• Cosine squared

• Secant squared

What is the equivalent expression for secant squared of X squared?

• Secant to the 4th of X

• Secant to the 3rd of X

• Secant squared of X

• Secant to the 5th of X