Find the exact value of the expression. Do not use a calculator.sin2 60° - cos2 45° - sin2 30°
A. 
B. 3
C. 0
D. - 
Answer: C
Mathematics
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Rationalize the numerator of the fraction.
A. 
B. 
C. 
D. 
Mathematics
For the pair of functions f and g, find all values of a for which f(a) = g(a).f(x) = 
,g(x) = 
A. -1, 4 B. -9, 12 C. 108, -1 D. 4, 103
Mathematics
Integrate using any method.
Mathematics
Solve the inequality. Express your answer using interval notation.7 ? 
x + 2 < 27
A. (2, 3]
B. [2, 3)
C. (2, 10]
D. [2, 10)
Mathematics