Find a cofunction with the same value as the given expression. csc 52°

a. sec 52°
b. sec 38°
c. sin 52°
d. sec 142°

To find a cofunction with the same value as the expression csc 52*, you would use the formula like this.  csc (x) = sec (90-x). So if you use csc(52) that equals sec(90-52). This in turn, equals sec(38). So the answer is B.