In Exercises 25 and 26 verify each 25 sin 40 cos 0 4 sin 0 8

Last updated: 4/22/2023

In Exercises 25 and 26 verify each 25 sin 40 cos 0 4 sin 0 8 sin 0 26 cos 40 8 cos 0 8 cos 0 1 quadruple angle formula