Question

what setting should be used when doing sum and difference identities with a calculator degrees or radians

Answer 1

Answer:

Radians

Step-by-step explanation:

If you use degrees, you have to put an annoying 2π/360 every time you try to simplify. This is why in calculus, we work with radians for all functions of derivatives, since its much easier to work with, and you dont have to write that annoying constant.