Use integration by parts to establish a reduction formula for the integral.
A. 
= - 
xn-1 e- x2 + 
B. 
= n xn-1 e- x2 + 2n 
C. 
= - 2xn-1 e- x2 - 2(n - 1) 
D. 
= - 
xn e- x2 + 
Answer: A
Mathematics
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Shade the regions representing the set.A ? (B ? C') 
A. 
B. 
C. 
D. 
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Graph the linear equation using intercepts.y = 0.6x + 1.2
A. 
B. 
C. 
D. 
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Find an equation for the ellipse described.Foci at (0, -4) and (0, 4); length of the major axis is 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
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Solve the system of equations using substitution.
A. x = -1, y = 14; x = 3, y = 2 or (-1, 14), (3, 2) B. x = 1, y = 4; x = -3, y = 32 or (1, 4), (-3, 32) C. x = 1, y = 4; x = 0, y = 8 or (1, 4), (0, 8) D. x = -1, y = 14; x = 0, y = 8 or (-1, 14), (0, 8)
Mathematics