Simplify.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Factor and, if possible, simplify the expression.sec4 x - tan4 x
A. sec2 x - tan2 x B. 1 C. (sec2 x + tan2 x)2 D. sec2 x + tan2 x
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Simplify the expression. The result will be one of sin x, cos x, tan x, cot x, sec x, csc x.
A. csc x B. sin x C. sec x D. cos x
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Find the derivative at each critical point and determine the local extreme values.y = 
A. 
B. 
C. 
D. 
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Factor the perfect square.16x2 - 40xy + 25y2
A. (4x + 5y)2 B. (4x - 5y)(4x + 5y) C. (16x + 1)(x + 25) D. (4x - 5y)2
Mathematics