Find the indicated extreme value of f subject to the given constraint.Minimum of 
subject to 
A. Minimum: -4 at 
B. Minimum: 4 at 
C. Minimum: -18 at 
D. Minimum: -18 at 
Answer: A
Mathematics
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FInd the tangential and normal components of the acceleration.r(t) = (t - 7)i + (ln(sec t) - 7)j + 9k, -?/2 < t < ?/2
A. a = (sec t tan t)T + (sec t)N B. a = (csc t)T + (sec t)N C. a = (sec2 t)T + (cos t)N D. a = (cos t)T + (cos t)N
Mathematics
Find the sum without the use of a number line.11 + (-11)
A. 0 B. 1 C. 22 D. -22
Mathematics
If the set W is a vector space, find a set S of vectors that spans it. Otherwise, state that W is not a vector space.W is the set of all vectors of the form 
, where a and b are arbitrary real numbers.
A. 
, 
B. 
, 
, 
C. Not a vector space
D. 
, 
Mathematics
Solve using Cramer's rule.
A. (3, 8) B. (-3, 9) C. (2, 9) D. No solution
Mathematics