Use Stokes' Theorem to calculate the circulation of the field F around the curve C in the indicated direction.F = 3yi + yj + zk; C: the counter-clockwise path around the boundary of the ellipse 
+ 
= 1
A. 90?
B. 30?
C. -90
D. -90?
Answer: D
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The lists below show five agricultural crops in Alabama, Arkansas, and Louisiana.AlabamaArkansasLouisianasoybeans (s)soybeans (s)soybeans (s) peanuts (p)rice (r)sugarcane (n)corn (c)cotton (t)rice (r)hay (h)hay (h)corn (c)wheat (w)wheat (w)cotton (t)Let U be the smallest possible universal set that includes all of the crops listed, and let A, K and L be the sets of five crops in Alabama, Arkansas, and Louisiana, respectively. Find each of the following sets.A' ? K'
A. {c, p, r, t} B. {n} C. ? D. {c, n, p, r, t}
Add or subtract.
- 
A. 
B. - 
C. - 
D. 
Graph the function. State the domain and range.y = - x2 - 1
A. 
Domain: ? Range: y ? - 1
B. 
Domain: x > -7 Range: ?
C. 
Domain: ? Range: ?
D. 
Domain: ? Range: y ? - 1
Find the derivative.s = t3 cos t - 14t sin t - 14 cos t
A. 
= t3 sin t - 3t2 cos t + 14t cos t
B. 
= - t3 sin t + 3t2 cos t - 14t cos t - 28 sin t
C. 
= - 3t2 sin t - 14 cos t + 14 sin t
D. 
= - t3 sin t + 3t2 cos t - 14t cos t