Factor the trigonometric expression and simplify.sec4x - 2 sec2x tan2x + tan4x
A. sec2x (1 + tan2x)
B. sec2x + tan2x
C. 2
D. 1
Answer: D
Mathematics
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Expand. Assume that all variables represent positive real numbers.logb yz9
A. 9 logb y + 9 logb z B. 9 logb yz C. logb y + logb9z D. logb y + 9 logb z
Mathematics
Subtract.-8 - (-10)
A. -2 B. 2 C. -18 D. -8
Mathematics
Find any restricted values for the given rational expression.
A. x = 9, x = -9 B. x = -3, x = -8 C. none D. x = 3, x = -8
Mathematics
Solve the problem.The motion of a spring-mass system is described by the equation 
where y is the distance in feet from the equilibrium position and t is time in seconds. Find the acceleration of the mass at time t = 3/4 seconds.
A. 3?2 feet/sec2 B. -3? feet/sec2 C. -3?2 feet/sec2 D. 0 feet/sec2
Mathematics