Geometry

Question Analysis

The main focus of this question is to test the understanding of the definition of the cosecant trigonometric ratio in a right - triangle.

Key Concept Explanation

In a right - triangle, for an acute angle , the cosecant (csc) is defined as the ratio of the length of the hypotenuse to the length of the side opposite the angle. That is, .

Step - by - Step Solution

We simply recall the definition of the cosecant function. There is no calculation step as it is a matter of knowledge recall.

Option Analysis

A.Csc = : This is the formula for tangent, not cosecant, so it is incorrect.

B.Csc = : This is the reciprocal of the correct cosecant formula. It is incorrect.

C.Csc =