Identify the equation as either an identity or not.tan2x = sec2x - sin2x - cos2x
A. Identity
B. Not an identity
Answer: A
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Provide an appropriate response.The circle of fifths is generated by starting at a particular musical note and stepping upward by intervals of a fifth. By what factor does the frequency of a tone increase if it is raised by two fifths?
A. 3.32 B. 2.24 C. 1.14 D. 7.94
Find zw or 
as specified. Leave your answer in polar form.z = 5(cos 200° + i sin 200°)w = 4(cos 50° + i sin 50°)Find 
.
A. 
(cos 40° + i sin 40°)
B. 
(cos 40° + i sin 40°)
C. 
(cos 150° + i sin 150°)
D. 
(cos 150° + i sin 150°)
Solve the problem.Find the volume of a box in the shape of a cube that is 5
inches on each side.
A. 15
cu. in.
B. 10
cu. in.
C. 27
cu. in.
D. 144
cu. in.
Find the first and second derivatives of the function.
?
?
A. 
B. ?
C. ?
D. ?
E. ?