Use an appropriate identity to find the exact value of the expression.cos (285°)
A. - 
B. - 
(
+ 1)
C. - 
(
- 1)
D. 
Answer: D
Mathematics
You might also like to view...
Find the derivative.f(x) = sin 3e5x
A. -15e5x cos 3e5x B. cos 3e5x C. e5x cos 3e5x D. 15e5x cos 3e5x
Mathematics
Construct a truth table for the statement.~s ? (~s ? q)
A. 
| T | T | F |
F T T
F F F
B.
| T | T | T |
F T T
F F T
C.
| T | T | T |
F T T
F F F
D.
| T | T | T |
F T T
F F F
Mathematics
Find the distance in the xy-plane between the two points. Round an approximate result to the nearest hundredth.(4.5, 0.5) and (1.5, 3.5)
A. 6 B. 1.41 C. 8.49 D. 4.24
Mathematics
For the functions f and g, find the requested value.Evaluate 
(2).
A. 2
B. 3
C. - 
D. 0
Mathematics