Sketch the graph of the given equation over the interval [-2?, 2?].y = 
cos 2x 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Perform the division.
A. x2 + 3x + 9 B. x2 - 3x + 9 C. x2 + 9 D. x2 - 3x - 9
Mathematics
Rewrite the expression with a positive rational exponent. Simplify, if possible.(4x2y5/2)1/2
A. 2xy5/4
B. 
C. 
D. 4xy5/4
Mathematics
Perform the indicated operations. Write the resulting polynomial in standard form.(-3x + 2y)(2x - 4y)
A. -6x2 + 16xy + 16y2 B. -6x2 + 12xy - 8y2 C. -6x2 + 16xy - 8y2 D. -6x2 + 4xy - 8y2
Mathematics
Find the inverse of the matrix (if it exists).
?
?
A. ?
B. ?
C. ?
D. ?
E. Does not exist
Mathematics