Escribir un 8% como un decimal

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3