Add or subtract as indicated.
- 
A. 
B. 
C. 0
D. 6x
Answer: D
Mathematics
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Find the area of the region specified by the integral(s).
A. 3 ln 3 B. 3(ln 3 - 1) C. ln 3 + 1 D. ln 3
Mathematics
The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = ln (t3 - 5t2 + 4)i - 
j - 5 cos (t)k
A. v(0) = 
i - 
j + 5k
B. v(0) = - 
j
C. v(0) = 
j
D. v(0) = 
i - 
j
Mathematics
Find the angle between the given vectors, to the nearest tenth of a degree.u = 3i + 5j, v = 4i - 4j
A. 166° B. 104° C. 65° D. 76°
Mathematics
Evaluate the integral.
A. 4 B. 2 C. 1 D. 0
Mathematics