Graph the function. Show at least one period.y = -3 cos(x - ?)
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the derivative of y with respect to x.y = tan-1 (ln 4x)
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B. 
C. 
D. 
Mathematics
Suppose that ? is in standard position and the given point is on the terminal side of ?. Give the exact value of the indicated trig function for ?.(12, 16); Find sin ?.
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B. 
C. 
D. 
Mathematics
Add or subtract the rational numbers. Express the sum or difference as a rational number in lowest terms.
+ 
A. 
B. 
C. 
D. 
Mathematics
Factor completely.z4 - 5z2 + 4
A. (z2 + 1)(z2 + 4) B. (z - 1)(z + 1)(z2 + 4) C. (z - 1)(z + 1)(z - 2)(z + 2) D. (z2 + 1)(z - 2)(z + 2)
Mathematics