III. Direction: Find the value of the following, set the answers in five decimal places.
26. cos 780=
29. sin 640=
27. sin 850=
30. cos 380=
28. tan 270=
IV. (31-35) Direction: Use the triangle at the right to find the values of the six trigonometric
functions. (Apply the Pythagorean formula (hyp)2 = (opp)2 + (adj)? to find the missing length)
B
sino =
CSCO =
?
COSO =
sec =
12
tane =
coto =
A
5​