How to evaluate the tangent of a double angle from a triangle

What is the relationship between secant and cosine?

• Secant is the same as cosine.

• Secant is the square of cosine.

• Secant is the reciprocal of cosine.

• Secant is the reciprocal of sine.

In which quadrant is the triangle formed when given the constraints π/2 and π?

• First quadrant

• Second quadrant

• Third quadrant

• Fourth quadrant

What is the value of the missing side 'a' in the triangle using the Pythagorean theorem?

• ± sqrt 21

• ± sqrt 25

• ± sqrt 9

• ± sqrt 16

How do you determine the tangent of an angle in a right triangle?

• Adjacent over hypotenuse

• Opposite over hypotenuse

• Opposite over adjacent

• Hypotenuse over opposite

What is the final answer for the tangent in the given problem?

• 4 sqrt 21 / 17

• 17 / 4 sqrt 21

• 17 sqrt 4 / 21

• 21 sqrt 4 / 17