Solve the equation on the interval 0 ? ? < 2?. sin ? + 
cos ? = -1
A. 
, 
B. 
, 
C. 0, 
D. 
, 
Answer: D
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Solve using the multiplication principle.
b = -2.75
A. -0.75 B. -1.00 C. -1.75 D. -5.50
Find the exact value under the given conditions.sin ? = - 
, 
< ? < 2?; tan ? = - 
, 
< ? < ?Find cos (? + ?).
A. 
B. 
C. - 
D. - 
Establish the identity.sin (x + y) - sin (x - y) = 2 cos x sin y
What will be an ideal response?
The formula to calculate the present value of an ordinary annuity is: 
Answer the following statement true (T) or false (F)