$$\text { Find the value of } s \text { in the interval } [ 0 , \pi / 2 ] \text { that makes the statement true. Round to four decimal places. }$$

$$\text { Find the value of } s \text { in the interval } [ 0 , \pi / 2 ] \text { that makes the statement true. Round to four decimal places. }$$
-cos s = 0.6784

A) 0.8252
B) 0.7456
C) 5.4580
D) 0.9668