Multiply and simplify.
? 
A. - 
B. 
C. 
D. -12
Answer: A
Mathematics
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Given that the graph of y = f(x) lies between the graphs of y = l(x) and y = u(x) for all x, use the Squeeze Theorem to find 
f(x).u(x) = 1, l(x) = 1 - 
, f(x) = 
A. 0
B. 
C. 1
D. Does not exist
Mathematics
Find a formula for the nth term of the sequence.0, 2, 2, 2, 0, 2, 2, 2 (0, 2, 2, 2 repeated)
A. an = 1 + (-1)n(n+1)(n+2)/6 B. an = 1 + (-1)n(n+1)/2 C. an = 1 + (-1)(n+1)(n + 2)/2 D. an = 1 + (-1)n(n-1)/2
Mathematics
Find all solutions to the equation in the interval [0, 2?).cos 4x - cos 2x = 0
A. 
, 
, 
, 
, 
, 
B. 0, 
, 
C. 0, 
, 
, ?, 
, 
D. No solution
Mathematics
Use the FOIL method to find the product. Express the product in descending powers of the variable.(x + 3)(x2 + 9)
A. x3 + 9x2 + 3x + 27 B. 3x2 + x + 27 C. x2 + 12x + 27 D. x3 + 3x2 + 9x + 27
Mathematics