Question

question 2 of 25 select the three basic trig ratios. a. cosine b. secant c. sine d. tangent

Explanation:

Step1: Recall trig - ratio definitions

The three basic trigonometric ratios in a right - triangle are sine (sin), cosine (cos), and tangent (tan). Sine of an angle is the ratio of the opposite side to the hypotenuse, cosine is the ratio of the adjacent side to the hypotenuse, and tangent is the ratio of the opposite side to the adjacent side. Secant is a reciprocal trigonometric ratio (sec = 1/cos) and is not one of the basic ratios.

Answer:

A. cosine, C. sine, D. tangent