Solve the given trigonometric equation analytically (using identities when necessary for exact values when possible) for values of x for 0 ? x < 2?.cos 3x cos x + sin 3x sin x = 0
A. 
, 
, 
, 
B. 
, 
C. 
D. 
, 
, 
Answer: A
Mathematics
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Solve the problem.Find the foci and asymptotes of the following hyperbola:25x2 - y2 = 25
A. Foci: (
, 0), (-
, 0); Asymptotes: y = 
x, y = - 
x
B. Foci: (
, 0), (-
, 0); Asymptotes: y = 5x, y = -5x
C. Foci: (5, 0), (-5, 0); Asymptotes: y = 
x, y = - 
x
D. Foci: (0, 
), (0, -
); Asymptotes: y = 5x, y = -5x
Mathematics
Use the Negative Exponent Rules to simplify. Write the answer with positive exponents. All variables are nonzero.8x-4
A. -8x
B. 
C. -32x
D. 
Mathematics
Solve the inequality. Express your answer using interval notation. Graph the solution set.|x - 19| > 3
A. (22, ?)
B. (-?, 16) ? (22, ?)
C. (16, 22)
D. (-22, -16)
Mathematics
Write the improper fraction as a mixed or whole number.
A. 2239
B. 
C. 2241
D. 160
Mathematics