Factor.40z6 - 84z4 - 40z2
A. 4z2(5z2 - 2)(2z2 + 5)
B. 4(2z4 - 5)(5z2 + 2)
C. (8z3 - 20)(5z3 + 2)
D. 4z2(2z2 - 5)(5z2 + 2)
Answer: D
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Express the integrand as a sum of partial fractions and evaluate the integral.
A. -4 ln 
+ 10ln
- 4ln
+ C
B. -14 ln 
+ 10ln
+ C
C. - 
+ 10ln
+ 4ln
+ C
D. -14 ln 
+ 10ln
+ 4ln
+ C
Find the area of the specified region.Inside the circle r = 1 and to the right of the line r = 
sec ?
A. 
(2? - 3
)
B. 
(2? + 3
)
C. 
?
D. 
(4? - 3
)
d. The power output is 50% of max. at fCO and the output decreases as frequency increases
a. VR decreases, VC increases.
b. VR remains the same, VC decreases.
c. VR increases, VC remains the same.
d. VR increases, VC decreases.
e. VR increases, VC increases.
Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. - 
B. 
C. 
D. 