Factor the trigonometric expression and simplify.tan4x - sec4x
A. sec2x + tan2x
B. sec2x
C. tan 2 - sec2x
D. -2 tan2x - 1
Answer: D
Mathematics
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Solve the given trigonometric equation analytically (using identities when necessary for exact values when possible) for values of x for 0 ? x < 2?.cos x = sin x
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Mathematics
Solve the problem.The sum of two numbers is 72, and twice their difference is 24. What is the smaller of the two numbers?
A. 24 B. 48 C. 42 D. 30
Mathematics
Use the information below to determine the cardinality of the set. U = {x | x ? N and x ? 12} A = {x | x ? N and 6 < x < 12} B = {x | x ? N and x is even and x < 12}n(U)
A. 13 B. 11 C. 12 D. 9
Mathematics
Graph the function.y = 
sec 
A. 
B. 
C. 
D. 
Mathematics