Question

The reciprocal of the cosine is the ___.

A. secant
B. tangent
C. sine
D. cotangent

Answer 1

Answer:

The correct answer is A

Step-by-step explanation:

The secant is the distance from the center to the vertical tangent in a certain direction.

Answer 2

Answer:

A. secant

Step-by-step explanation:

For trigonometric ratios, we know that cosine is $\frac{adjacent}{hypotenuse}$. The reciprocal of something is just flipped over. So the reciprocal of cosine is $\frac{hypotenuse}{adjacent}$, which is the ratio for secant.

Another way we can remember this is       $sec x = \frac{1}{cos x} \\\\cos x = \frac{1}{sec x}$