Identify the property illustrated by the statement. Assume all variables represent real numbers.7 + (-7) = 0
A. Closure
B. Identity
C. Inverse
D. Associative
Answer: C
Mathematics
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Find the flux of the vector field F across the surface S in the indicated direction.F = 5xi + 5yj + z3k; S is portion of the cylinder x2 + y2 = 4 between z = 0 and z = 4; direction is outward
A. -160? B. 80 C. 160? D. 160
Mathematics
Integrate the given expression.
A. 
x3/2 + 
x4/3 + C
B. 2
+ 2
+ C
C. 
x3/2 + 
x4/3 + C
D. 2
+ 3
+ C
Mathematics
Solve the initial value problem.y'(x) = 9x2 - 18x-4, y(1) = 0
A. y = 3x3 + 6x-3 + 9 B. y = 3x3 - 6x-3 + 9 C. y = 3x3 + 6x-3 D. y = 3x3 + 6x-3 - 9
Mathematics
Express the integrand as a sum of partial fractions and evaluate the integral.
A. 
- 9x + 27ln
+ 
+ C
B. 27ln
+ 
- 
+ C
C. 
- 9x + 9ln
- 
+ C
D. 
- 9x - 27ln
+ 
+ C
Mathematics