Use the diagram to complete the statement. given jkl, sin(38) equals— (diagram is a right triangle. angle k is 52 degrees and angle l is 38) cos(38) cos(52) tan(38) tan(52)

Cos(52) . Sine and Cosine are cofunctions so to convert from one to the other you subtract the value from 90 to get the other function.  90-38= 52.  you can check this by putting both into a calculator.  (in degree mode on calculator)
sin(38) = 0.61566
cos(52) = 0.61566