Use the power-reducing identities to rewrite the expression that does not contain trigonometric functions of power greater than 1.sin4 x - cos4 x
A. cos x
B. cos 2x
C. sin 2x
D. - cos 2x
Answer: D
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Set up the iterated integral for evaluating 
over the given region D. DD is the rectangular solid whose base is the triangle with vertices at 
and 
, and whose top lies in the plane 
.
A. 
B. 
C. 
D. 
Write the negation of the conditional. Use the fact that the negation of p ? q is p ? ~q.If she doesn't study, she won't pass her math test.
A. She studies and will pass her math test. B. She doesn't study and will pass her math test. C. She doesn't study and she won't pass her math test. D. If she doesn't study, she will pass her math test.
Plot the point A. Plot the point B that has the given symmetry with point A.A = (2, 4); B is symmetric to A with respect to the x-axis
A. 
B. 
C. 
D. 
Divide. Simplify, if possible.
÷ 5
A. 
B. 
C. 
D. 3