Use the fundamental identities to simplify the expression.cos ? - cos ? sin2?
A. sec2?
B. tan2?
C. cos3?
D. sin ?
Answer: C
Mathematics
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Write interval notation for the given set or graph.
A. [7, ?) B. (-?, 7] C. (-?, 7) D. (7, ?)
Mathematics
Solve the equation.
= 
A. {- 5, - 1}
B. {- 5, 
}
C. ?
D. {5, 2}
Mathematics
Convert the units.84 L = 
mL
A. 0.084 mL B. 8.4 mL C. 84,000 mL D. 8400 mL
Mathematics
Find all points where the function is discontinuous.
A. x = -2 B. None C. x = 1 D. x = -2, x = 1
Mathematics