Answer
real;
radian
Work Step by Step
Since circular functions involve real numbers, calculators must be used in radian mode.
Thus, the missing expressions in the given statement are:
real;
radian
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.