Let A = {1, 3, 5, 7}, B = {5, 6, 7, 8}, C = {5, 8}, D = {2, 5, 8}, and U = {1, 2, 3, 4, 5, 6, 7, 8}. Decide if the set relationship is true or false.C ? D
A. True
B. False
Answer: A
Mathematics
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Factor the trigonometric expression.cot2 x - csc2x
A. (cot x - csc x)2 B. (cot x - csc x)(cot x + csc x) C. (cot2 x - 1)(csc2x + 1) D. (cot x - 1)(cot x + csc2x)
Mathematics
Evaluate the integral using the given substitution.
dx , u = - 
A. - 
+ 
sin 
+ C
B. - 
+ sin3 
+ C
C. 
+ 
sin 
+ C
D. - 
+ 
sin 
+ C
Mathematics
Factor. Assume that all exponents are positive.64x2m - 4y2n
A. 256(xm + yn)(xm - yn) B. 16(xm + yn)(m - n) C. (8xm + 2yn)(8xm - 2yn) D. (8xm - 2yn)2
Mathematics
If y varies inversely as x, find the inverse variation equation for the situation.y = 5 when x = 6
A. y = 
x
B. y = 
C. y = 
D. y = 
Mathematics