1.24. Which of these equations regarding the relationship between the sides and angles of the triangles shown below is true? A B E A. sin- () = sin () AB B. sin = cos-1 C. sin¬' ) АВ = sin -1 (DE DC -1 D. sin -1 (DEY = tan АС DC

The sides of each of the following right triangles are labeled with different letters. State the ratio of each of the six functions in relation to 1for each of the triangles. For example, for the triangle in Exercise 23, sin1yr,cos1xr,tan1yx,cot1xy,sec1rx,and csc1ry.

For each exercise, functions of two angles are given. Which of the functions of the two angles is greater? Do not use a calculator. cos 78, cos 85