Use the definition or identities to find the exact value of the indicated trigonometric function of the acute angle ?.cot ? = 
Find sin ?.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the intervals on which the function is continuous.y = 
A. continuous on the intervals (-?, -
] and [
, ?)
B. continuous everywhere
C. continuous on the interval [
, ?)
D. continuous on the interval [-
, 
]
Mathematics
State whether the fractions are equal or not equal.
, 
A. Equal B. Not equal
Mathematics
Solve.Erika spent 
hr on her computer visiting the history channel and the discovery channel websites. She spent 
hr at the history channel website. How many hours did she spend at the discovery channel website?
A. 
hr
B. 
hr
C. 
hr
D. 
hr
Mathematics
Name the quadrant in which the angle ? lies.tan ? < 0, sin ? < 0
A. I B. II C. III D. IV
Mathematics