Complete the identity.cos (4?) = ?
A. 3 sin ? - 4 sin3 ?
B. cos4 ? - 6 sin2 ? cos2 ? + sin4 ?
C. cos3 ? - 3 sin2 ? cos ?
D. 4 sin ? cos3 ? - 4 sin3 ? cos ?
Answer: B
Mathematics
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Find the derivative.
A. 
x6
B. 
x6 - 
C. 16x9/2
D. 8x4
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Give the number of degrees in each angle of each regular polygon.
A. 60° B. 120° C. 360° D. 90°
Mathematics
Translate the word statement into a percent proportion. Do not solve.What number is 10% of 83 ?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Examine the function given below for relative extrema and saddle points.
?
?
A. The function has a saddle point at 
.
B. The function has a relative maximum at 
.
C. The function has a relative minimum at 
.
D. The function has a saddle point at 
.
E. The function has a relative maximum at 
.
Mathematics