Find the exact value, given that sin A = -4/5 with A in quadrant IV, 
with B in quadrant III, and 
with C in quadrant II.tan 2B
A. - 
B. - 
C. 
D. 
Answer: D
Mathematics
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Perform the indicated operation. Where possible, reduce the answer to its lowest terms.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Find the roots of the equations.
= 
A. -1 B. -3 C. 1 D. 3
Mathematics
Simplify.|-9| - |-14|
A. -5 B. 5 C. -23 D. 23
Mathematics
Find the exact value of the indicated trigonometric function of ?, if ? is an angle in standard position whose terminal side contains the given point.
; find sin ? and cos ?.
A. sin ? = - 
, cos ? = 
B. sin ? = - 
, cos ? = - 
C. sin ? = 
, cos ? = - 
D. sin ? = 
, cos ? = - 
Mathematics