Find all solutions of the equation in the interval [0, 2?).2 cos2 x - 1 = 0
A. 
, 
B. 
, 
, 
, 
C. 
, 
D. 
, 
, 
, 
Answer: D
Mathematics
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Subtract in the indicated base.
A. 1334 B. 2324 C. 1994 D. 1434
Mathematics
Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Mathematics
Find the distance between the pair of points. Give an exact answer.(7, 4) and (-6, -5)
A. 88
units
B. 5
units
C. 88 units
D. 4 units
Mathematics
Find the composition. If f(x) = 2x + 2 and g(x) = x + 4, find (g ? f)(x).
A. 2x2 + 10x + 8 B. 2x + 10 C. 2x + 6 D. 2x2 + 10
Mathematics