Find a cofunction with the same value as the given expressio

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°

Solution

Cofunctions are
sin and cos
tan and cot
sec and csc

So, for csc52, we have
sec(90 - 52)

as in
sec (38)

Option B